hypothyroidism questions!!

I’m 14 and my doctor told me I have a problem with my thyroid. Im fairly certain it’s hypothyroidism. I am fat, always have been and always hated it... I could never lose weight and I was like 12!! I’ve read that weight gain is a symptom of hypothyroidism and I was wondering what happened to your guys weight after starting a pill. Sorry I’m not very educated on this topic. If you have hypothyroidism, and know about it please help me and tell me what you can. thank you so much!!

I haven’t started anything or any pill so I’m not sure and any information on this topic would be so greatly appreciated because I’m not going to lie, I don’t know anything about it...

*This is a repost because I didn’t know this group was a thing. :) ❤️