Perpetual Hunger?

sounds like you may have a parasite.

If you are hungry you should eat food.

Your fat intake seems lows, some days you are way under what is recommended - try to spread your macros and calories out better through the day, breakfast can have a massive effect on hunger and cravings for the rest of the day. Satiety is conferred by a combination of enough overall calories, protein, fibre, water and fats. Different fibres/ sources have different properties. Could your hormones and monthly fluctuations be playing a role? Or the seasons?

IMO go back to basics, calculate your TDEE and aim to lose a sensible amount of weight, even if that is only half a pound a week. Base your day around nine servings of non starchy vegetables (not stuff like potatoes or corn) and low sugar fruits (berries, red/ black currants, grapefruit, rhubarb), if you have other fruits limit your serving size and/ or number so you limit your sugars. Three servings of reduced fat dairy a day (cottage cheese is low in calcium so don't rely on this), protein and healthy fats at every meal and snack, plenty of mineral and fibre rich foods (nuts, seeds, beans, lentils), oily fish regularly.

The big one .... cut the refined/ sugary/ processed crap back to 10% of daily calories, that means banana bread, cereal bars, maple syrup, breakfast cereals, tortillas, chocolates, flavoured yoghurt, muffins, jam, candy peanuts. These will send your blood glucose peaking and troughing all day, triggering cravings and hunger. Caffeine can also mess with blood sugar and appetite via adrenaline. Consider making your own snacks with cocoa powder, nuts, seeds, unsweetened pumpkin, xylitol or stevia, jumbo oats or barley flakes, block creamed coconut, plain Greek yohurt but do try to get used to consuming less sugary/ sweet stuff. This will give you more calories for the micronutrient rich foods you are lacking.

There are tons of ways to make vegetables more pleasant or tolerable - soups, smoothies (mixed berries are a strong flavour), tomato and veggie pasta sauce, South or East Asian coconut curries, stir fries, top with nuts or cheese, stews/ casseroles, homemade vegetable chips, vegetable sticks dipped in sour cream/ guacamole, tomato salsa, red lentils and grated carrot in long cooked Bolognese sauce.

Is your back issue definitely true sciatica and not piriformis syndrome? Sometimes these are misdiagnosed or can coexist. You might find a fitness professional/ physiotherapist to do you a full posture assessment and teach you self myofascial release (self massage/ releasing knots or trigger points) with a foam roller. Painful but can be very effective - almost everyone has imbalances because we spend so much time in the same scrunched seated position (desk, car, sofa). Occasionally nutrient deficiencies/ imbalances may be playing a role, magnesium intake is key for me (piriformis syndrome/ restless legs).

My cutting back sugary foods is still a work in progress. I'm a really picky eater though so I have to get used to stuff, some of it I just can't eat in the "plain" version because I gag. I don't have nearly enough time to prepare homemade versions of foods that are otherwise heavily processed. I at least try to pick the healthier versions I can find of everything. I HAVE been having a bad week and some, probably due to that box of chocolates that haunted me last week and struggling with the flu. Usually the chocolate and breakfast cereals find their way on my menu just once every other day lol.

It just seems no matter what I do it always comes back. Guess I just gotta keep trying to eat better.

Don't understand why you think food has to be either plain and healthy OR tasty. Buy a crock pot/ slow cooker you can throw a healthy meal together in five minutes. Also consider a stick blender with it's own lidded beaker with which you can make soups and smoothies. Make as much as possible in bulk, no need to cook from scratch every day. It doesn't take long to make a batch of flapjacks.

Flavour your food with balsamic or other vinegars, lemon or lime juice, creamed coconut, dry South Asian or Mexican spice blends, jars of Thai herbs/ spices, mediterranean herbs, chilli, garlic, red wine, olive tapenade, basil pesto, low salt vegetable bouillon, black pepper, no added salt yeast extract, cocoa, tomato paste, frozen mixed berries, xylitol or stevia. Until you massively cut back on the sugar you likely will struggle with hunger and cravings there really is no way around that fact. Aside from all its other 'lovely' effects sugar suppresses immune function so could be responsible for your influenza.

Instead of sweetened yoghurt have plain Greek but add fresh, frozen or no added sugar dried fruits plus some nuts or seeds. Instead of sugary cereal have Grape Nuts, low sugar granola or oats soaked in milk or yoghurt, again flavour with fresh or frozen fruit, dried fruit plus nuts or seeds. Have a little xylitol or stevia if you need more sweetness but try to wean down..

Well I noticed that you eat less than 1600 calories a day. That sounds like a reason to be hungry. Also, it looks like you are getting very close to your goal. If you have less than 20 pounds to lose, then you should decrease your deficit anyway and just be patient. It will take longer to lose a pound, but those last few pounds are usually the hardest to lose.

I eat 1900 calories a day and still have to make sure I get enough protein and fiber to prevent hunger. When I have eaten less then 1600, I get weak and dizzy.

ETA: And you are a 25 year old young man. It's hard to imagine that your TDEE is that low at your age. If your doctor says there is no medical reason, then try eating at your TDEE for a couple of weeks, then do a 10% cut and be patient.

Welcome to team never full

There's complimentary cucumber and water in the back.

OP: Try taking a 1-2 week diet break.

You may be diabetic. Common symptoms include polyphagia polydipsia and polyuria: excessive hunger, thirst and urination. I'm glad you are seeing a doctor. Best of luck to you!

ETA: And you are a 25 year old young man. It's hard to imagine that your TDEE is that low at your age. If your doctor says there is no medical reason, then try eating at your TDEE for a couple of weeks, then do a 10% cut and be patient.

Um, does my profile not specify that I'm female? O_o I only WISH I could eat like a guy... Seriously. And forget it on the week of my period I just want to eat everything in sight haha.

BWAHAHAHA that tiny thumbnail photo tricked a lot of us i think. good luck w/ the Dr...i had this issue for awhile and eventually i just had to start being hungry sometimes and not eating all the time. it sounds like you have a firm eating schedule in place though, so perhaps it's not the same issue. the craving for sugar/starch makes me think it's a blood sugar issue, so i'd be interested to hear what the Dr says if you care to update us.

Make sure to tell the doctors you want to be checked for HYPOglycemia