Have gained a stone in a year from 10 to 11 I originally put it down to not exercising eating more etc but now after a concerted effort of tracking my food on mfp doing c25k and two pt sessions a week I have lost nada over 6 weeks ! Gutted is not the word however I think I have an underactive thyroid no sex drive tired gaining weight pre menopausal and my friend prescribing nurse noticed my thyroid was enlarged. Can anyone be positive about their experiance please did they ever lose the weight and I'm worried I will be borderline and therefore not able to be prescribed thyroxine please help x