Anyone ever experience this?

You are not in starvation mode and it is not muscle.

Thank YOU!!!!!

AMEN!

TRIPLE THAT. If you're eating 1200 and burning 1000... What does leave your body to have? EAT MORE. At least try to NET 1200. According to your math, your NET is at MOST 200. :noway:

Me fourth. But really, if you are eating 1200 and burning 1000 with exercise, you are actually practically not eating. Even discounting "starvation mode" and "muscle weighs more than fat," it's STILL not the case that you can keep dropping your calories and losing more and more weight. It is a game of diminishing returns.

you did not gain any kind of muscle on 1200 calories a day. if anything, your body ATE what muscle you already had! 1200 calories a day is not enough unless your only exercise is punching the remote. Listen to the good folks who are telling you to eat more. If you truly are burning 1000 cal/day....YOU ARE AMAZING. But I would sincerely think you will begin to feel like s^&&*T VERY soon.

Are you using an HRM? Mine is ridiculously high in cal burn. But that even doesn't matter if you are eating so little. I was eating 1200/day and burning 200-300/day. I lost for a couple months and then had to up my calories to 1400/day. I FEEL SO MUCH BETTER ON THE 1400. That is probably too low now and I will raise it soon as I NOW have the energy to exercise MORE! A lot of folks eat their exercise calories back and still lose. I don't do that because I'm over 55 and that just doesn't work for me. Maybe it would....at a rate of 2 pounds/month and that won't keep me motivated. I still only lose 7-9 lbs/month. But, HEY--THEY ARE LOST. THEY DON'T COME BACK AFTER ONE NORMAL MEAL!

EAT MORE PLEASE. and get a good idea of what you are burning. there are a lot of sites with calorie calculations you can compare. I kinda use an average of everything I have found since I know there is no way my HRM is right.

Just read your profile. From years of yo-yoing (which I DID), you have messed up your metabolism. There is lots of information, both here, and other sites to give you ideas how to fix that before you can efficiently lose. What worked for me, is real unprocessed foods, no starches, no flour of any kind, good liver cleansing supplements, tons of water, lots of fruit/veges, fish or chicken or turkey only. After a few weeks of this, the weight started moving and I found I felt so good eating this that I only add in red meat or a bread product or any starch a few times/month. Eat good food and you WILL lose.

Good luck in finding what works for you. But please listen to the folks who say you are eating too little. I really bet you are.

EXTREMES NEVER WORK.


(P.S. and I tried the most extreme of all....the silly HCG diet where you starve yourself on 500 cal/day. I did this prior to joining MFP. Guess what...it didn't work for me and I felt like slitting my wrists on such starvation calories!!! lol...but seriously, it was awful for a tiny reward in loss that came back immediately).

We all have weird fluctuations. I think mine has to do with hormones/time of the month. From the few days before my period all the way till a week after my period I seem to have a higher weight, then I drop 3-4 pounds in a week seemingly. Then I stay there again through the next two week period then I drop another 3-4 pounds in a span of a week or two. Weird~~ I see the clothes fitting better though the whole time so I know it's water weight.