Suggest Treatment For Headache And Fatigue In A Person With A History Of Hypothyroidism

Question : hi im a 46 year old female. i have a history of hypothyroidism, that has been mostly well managed. i have mantained my weight in a healthy range by excersise and eating a relatively well balanced but semi strict diet. about 18 months ago, while i havent changed anything, i put on about 40lbs over the course of about 5 months. i cut back on calories, increased my workouts, still gained lbs. my main doc upped my thyroid, and all subsequest docs have done the same; now im about 3 times what i was in the past. while the weight gain has stopped, i cant lose any. every doc i see wants to put me on diet pills. i eat between 1200\1500 calories a day, high protien, high fat, low carb, and work out with a personal trainer 5 days a week. i dont need diet pills? im lathargic, i have headaches, and im moody. ive had my lady hormones tested, they are "fine". ive seen internists, GPs and an endo. they all test my blood, tell me im healthy, and give me a diet pill. im fat, but worse, i feel like crap!! my question is...what kind of doctor should i see that will really dig in and look past the chubby old chick sitting in their office, and really look to see what is going on? cuz something isnt right. im in chicagoland btw. thanks!

hi thanks for the reply!
yes my thyroid is considered under control now, at 3 times the dose I was 2 years ago. no one knows why it went suddenly off the rails, not a thing changed between one month and the next.
Ive been to see an endocrinologist, who tested my blood for everything, including diabetes. She claims Im the healthiest person in her practice....and prescribed a diet pill.