I know there are many reasons a person can get HypoT. It can be Hashimoto's, pregnancy related, cancer, iodine deficiency, possibly radiation exposure, and others I can't think of right now. Please share your backgroud with this disease!
In my case, my hypothyroidism is genetic on mom's side of the family, so I have Hashimoto's disease (Oh, how I'd like to return it to him)! ;>) Mom and my oldest siste also have the condition as =did at least one male relative decades ago.