Can anyone steer me in the right direction

[DDH]

I have had a weight problem since I had my son 14 years ago. I am at my heaviest now. I have gained a lot of the weight I have now in the last 2 years. I went from 200 to 260. I have talked to the doctors because I am constantly watching what I eat and trying to change my eating habits.
I haven't exercised much in the last year due to surgeries and other health issues and just not feeling good. Well, in the last month and a half, I have began exercising, using my treadmill, and my wii fit and in the last week began biking again. A month ago, or maybe less, I weighed 260 and today I get on the scale and I weigh 276. How does that happen. I am so depressed now. I feel like the harder I try to lose weight the more I gain. Before anyone ask, I have not been eating more or pigging out. I have had some ice cream, but not daily by any means. The doctor just recently checked me for cushings syndrome, but evidently everything was okay cause I haven't heard from her. Is there anything else medically that could cause this. I just feel like it almost has to be something medical. How does a person gain 16 lbs in a month? While exercising and watching what I eat. Seems impossible to me.
I have to do something to lose some weight. I feel miserable in my own skin and there are challenges to putting shoes on and other things when you are this heavy. I just don't get it. I don't understand and as happy as I am to be riding again, after weighing myself today, I just don't feel like anything I do is worth bothering.

[maillotpois]

Auto-immune thyroid disorders (i.e. hashimoto's) will sometimes occur after you've gone through childbirth. If your doctor has not already done a metabolic panel on you it is worth asking.

[DDH]

Well, I had Graves disease and one of the symptoms is suppose to be weightless and I still didn't lose weight. In the last year, I have had my thyroid and gallbladder removed. I take 137 mcgs of levothyroxide daily to replace the thyroid hormones.
Could I possibly have that too?
I don't think I have ever had a metabolic test done. Is that exactly what I ask for?
I don't want to seem ignorant, but I guess I kind of am when it comes to testing and doctors. I try to put my foot down and it seems like I still get looked at like I'm crazy. My endocrinologist is the first one that has paid attention to the weight gain without looking at me like, I'm just eating to much.

[redrhodie]

Trust yourself. If you feel there's something medically wrong, there probably is. Be firm with the doctor. Explain you are not overeating, you are exercising, and you are gaining weight. Keep a food diary so you can prove your case to them. Don't let your doc blow you off, and if he does, find another. It may take a few tries to find someone capable and willing to help you.

[Eden]

Seems like if you have had your thyroid removed and are on replacement hormones you absolutely should have had a metabolic panel done to be sure your doses are correct.... and if I'm not crazy it should be repeated periodically to be sure they remain correct?

Low thyroid can cause weight gain - among other problems.

[maillotpois]

Seems like if you have had your thyroid removed and are on replacement hormones you absolutely should have had a metabolic panel done to be sure your doses are correct.... and if I'm not crazy it should be repeated periodically to be sure they remain correct?

Low thyroid can cause weight gain - among other problems.

Correct on all counts.