Would appriciate some more advice PLEASE

Was just curious how you determined that you're eating 1400 calories per day, do you weigh and measure everything you eat using a food scale and measuring cups/spoons (liquids only?). Do you log weekends, fruits, vegetables, cheat days, holidays, splurges, etc? Unfortunately it's also possible that you've lost your initial weight being in a deficit, and now that some weight has come off, you're eating closer to your current maintenance calories, which have reduced according to your smaller size, and are no therefore longer losing weight.

That aside, if you're getting fatigued to the point that you can't get through a day, you could always increase your calories. But see above. If you increase when in maintenance or a surplus, you'll just gain more weight. You may have told MFP you want to lose 2 or 2.5 lbs a week. If you change it to one lb a week, the numbers may match your TDEE calculator numbers? They could also be more sustainable if you have issues sticking with too aggressive a target

For better advice you may need to set your diary to public so people can comment specifically on food and exercise logs. For example something you're eating might make someone highly lethargic, you never know!

Read this: http://www.myfitnesspal.com/topics/show/1080242-a-guide-to-get-you-started-on-your-path-to-sexypants

Just take 10-15% off the max tdee number.

I found that I lost more consistently when I ate enough and maintained a 500 cal deficit or less. I'm female, 5'8", started at 217lbs and am down to 183lbs now. I aim to eat 1902 cals now, but my over time average intake is around 2040 cals. I do recalculate every 2 pounds, and my diary goal of 1902 cals is my sedentary tdee. Ive been experimenting with several different formulas and so far i like using my sedentary tdee the best because my actual burn numbers are higher and it encourages me to move more to create a deficit. I rarely eat back my calories.

I have also done the adding exercise numbers and manually subtracting 15% and that formula worked. Again I set my diary to my sedentary tdee of 2012 at that time(+/-204lbs) and did manual math. It allowed me to eat more on the days I worked out but it also had me eating quite a bit less on days I didn't exercise and it put me too close to my BMR number. I switched it up because I got really sick twice in January and February and that was a signal to me to reevaluate.

The current formula I'm using has me exercising a little less and eating a little more but I find the balance is better. I weigh everything so that my numbers are as accurate as possible. I have been "dieting" for 245 days and I have at least another 245 days until I could reach my loss goals. Long term, its a tiny bit slower but it has to be sustainable. You didn't gain overnight, it doesn't come off overnight.

Thank you both for your advice.

I weigh and measure everything that I eat and log it down. Even when my husband cooks he always weighs everything. I got the 1480 from the MFP. It started at 1580 but as I lost weight they automatically reduced it. I have just changed the setting from no exercise which I was when I stared my journey to slightly active and the calories have increased to 1770 cals per day.

Once again thank you both

If you change to lightly active and you're not truly lightly active, you could essentially be logging your exercise calories twice. The MFP app gave some examples. Sedentary: desk job, bank teller. Lightly active: teacher, salesman. Active: waitress, mailman. Very active : carpenter, bike messenger. Basically how much built in exercise you get during the day. And then you'd still add on exercise calories

However if you're sure you want to increase for any reason , you certainly should. Just wanted to make sure you understood how the activity settings worked

You're definitely not eating enough. I use the fitness frog measure and I eat around 2000 a day. Also, are you giving yourself rest days?

And as far as counting exercise, I'd recommend buying a Heart Rate Montior. I have a polar FT4 on Amazon for $60.