hair loss / methimazole

i’ve been taking methimazole (5mg) for a little over a year now. i have hyperactive thyroidism but at my last appointment, my Dr. told me my levels improved a whole lot. but over the last couple months, i’ve been shedding a lot of hair each time i shower and often throughout the day. it feels like it’s getting worse and i’ve noticed my bangs thinning out & it’s been making me more self-conscious. i have not yet brought it up to my doctor since it just started, but i was wondering if anyone else experienced this taking methimazole & if there’s any vitamin supplements or anything that actually helped them. i also take 30mg of propranolol daily. thanks!