Kindly guide me about Hashimoto's disease.

Hello doctor,

I am an 18-year-old girl. I have had thyroid problems since I was around 11. It used to be just considered hypothyroidism but now we have figured out that it is Hashimoto’s disease. I rotate daily between 88 mcg and 100 mcg of Levothyroxine to keep my TSH in check because that is the only thing that works. I get my blood drawn every six months but my doctor has not checked these antibodies lately even though last time, the number was around 5,000 when it was supposed to be 0 to 59. Some days I can barely move, and I am really limited in the activities that I am physically able to participate in. I am just scared. I do not know what is going to happen to me. If someone who is older could help or tell me what happens, I would really appreciate it.