Stomach cramps from not eating?

I don't think that's necessarily true! I don't feel bad eating early, it's just not in my routine. Although, I plan on picking up some sliced fruits and vegetables and healthy crackers to snack on throughout the day in replacement and see if this makes a difference

Your initial post said that when you don't eat breakfast or lunch you get cramps and pain and bloating - this sounds like feeling bad to me!
Everyone's body is different - the best thing you can do is try eating something small and simple and see if this makes you feel better. If not, maybe go to your doctor to see if there is something medical happening.

I know that if I don't eat for a certain interval of time--I don't remember exactly what it is because it doesn't happen very often--I get stomach pains. If I try to eat while I have them, it just makes it worse. I have to wait for them to pass, which can take an hour or so. I'm not sure exactly why this happens, but I make sure I eat often enough to avoid it!

I agree. I peaked at you diary. I think you need to eat more in general hun!
500-800 calories a day, skipping breakfast and lunch, and asking if it stomach pain could be from something else?
Up the food intake and you will feel better

I agree. It looks like you need to eat more in general.

Same thing used to happen to me last semester everyday. I would eat breakfast around 6:30, but wouldn't be able to eat lunch until around 1:30-3:00 depending on when my classes let out. I would get this awful stomach cramps everyday around 11:00-till time for lunch. If you don't want to break your routine I'd suggesting packing some nuts or crackers in your purse, and munching on them before the time the cramps usually start.

I started a weightlifting plan that is pretty challenging. The book urges you to only have at most a 300 calorie deficit and makes a really good argument against starving yourself of the kind of severe calorie restrictions you're talking about. So I nervously upped my calories using the formulas in the book. Didn't really gain weight. Sometimes got hungry (that's what those cramps are btw). Then I added back in my 10k running plan. I had a long run that ended up after I'd really pushed myself to new highs on my lifts. I felt awesome and had a bunch of calories and felt like I couldn't eat them all.

I woke up the next morning STARVING. Sooo hungry. I ate.. an hour later, I'm really hungry. Drank some water but couldn't get away to eat. Still hungry. Soon as I can I start eating the lunch I brought. Still hungry. Spend some time trying to make good choices at the vending machine. Still hungry. It went on like this all day. I was at my original calorie goal by noon. It wasn't enough. I kept eating because my body kept telling me it needs more food. I researched and found several formulas that pegged my BMR close to my calorie goal, which meant the goal mfps formula gave me was way too low for me. I decided to up my calorie goal again but that night I even went over that. The next morning I woke up starving again and dreading it. I ate to my new goal and didn't have a repeat bout of fighting debilitating hunger pains all day. It hasn't happened again since I upped my calories. That was a couple weeks ago and even though my focus is on body composition not weight loss any more, I was pleased that I lost a couple pounds since upping my cals again. Mostly I'm thrilled to get stronger and thinner and not be ravenously hungry.

I eat, apparently 3-4 times more calories than you. I can do this because my metabolism is humming along, and, I suspect, is increasing as I lift and eat more. Those pains are your body screaming for food. Its miserable. I hated every moment of my 36r so hours of starving hungry. It sounds like somehow you're under tje impression that starving yourself is part of weightloss and is an everyday experience. It isn't. Don't train your body to think it has to survive long term on one meal of 500 calories. A day. Thats a miserable way to live and isn't even the quickest way to get to the goals you want.

No offense, but your starvation diet is VERY unhealthy.
Forget the cramps - just eat, and eat to goal every single day - no skipping breakfast.
Just eat.
Your health is at risk, so any further dialog that would encourage you to continue down this road is moot.
Give the MFP recommendations a go, and work on your health before it's too late.

I suspect there is much going on here, and I wish you well in your journey.

I looked at your diary, and honestly, I'm not sure MFP is the place for you. Here people are more focused on health, and you seem to need help getting MORE calories into your diet, not losing any weight. Just my opinion.