Hi was diagnosed under active about 5 years ago and I've been fine since I became stabilised. But for the past few months I've been getting some symptoms again, like weight gain dry skin thinning hair tiredness . I've had my bloods done recently and my doc said everything is fine , my level is right in the middle. Whatever that means. Anyway I've been going to the gym and swim 3 times a week, I also walk the dog twice a day for at least an hour a time but can't seem to loose weight . please help . I'm wondering how much I would of put on if I didn't do all this activity .