I've had hypothyroidism since age 13. I was always thin but blew up during puberty. Blew up to 265lbs a size US24 currently I am 135lbs a size US 2-4. All of my youth I was told I was fat and ate too much that's all. I knew something was wrong when I went raw vegan and raw broccoli made me gain weight. I was never tested before the age of 18 due to carelessness of others. As an adult I got officially tested and it was confirmed to me. That I had hypothyroidism low T3 to be specific. I was given medicine. I took it for a week started with an L(can't remember at the moment). Long story short it didn't work out. So now I'm doing what I've always done. A very strict careful diet with exercise. I lose muscle fast and it's also hard to gain it and keep it. I have to be extremely careful with ingredients in foods. Just recently eating too much soy caused me a 2 week early period. Literally no one I know or have met understands this battle. I've been through my entire life. Everyone gives advice based on their own body which is advice of a normal functioning body. This is the most obvious symptom. I think I'm headed in the right direction the past year or 2. I had a period for the first time when I was 13 than it didn't return until 15. After that it was never regular. I'd have them a few times a year at most. This is the first time in my life I've had them every month. Just trying to find similar people with this condition. Pass on or exchange information etc.