I Was Told I Have Hashimoto Thyroid I Have Been

i was told i have hashimoto thyroid i have been sick for two years dizzy fatiued eye pain neck pain weight gain blurred vision bloating constipated down right tired blood pressure up and down i am 60 years old i also have fibromyalgia had complete hysterectomy age 24 just started a gluten free diet what can i do to help myself doctor primary care doesnt now anything my test said 76 he said he knows if it gets to 100 i will crash so now what