I do sympathize. Hair loss is very distressing. Congratulations on your weight loss!

I might check with your doctor about the high dose of biotin and make sure it’s ok. Also, did they check B12 levels? Low B12 can cause loss. I was deficient in B12 and take a high dose of that.

I lost a large amount of weight too last year over a relatively short time. So, not sure if that caused my shedding or if something else, like the low B12, my post covid syndrome or something else. My dermatologist and endocrinologist aren’t sure, but thought due to rapid weight loss. So I’m on Minoxidil oral tablets. It’s proven to be effective. Have you seen a dermatologist?

I have also seen two nutritionists about ensuring my diet is sound and able to fuel my body, yet support my weight loss goals. I’m one pound from my goal. I focus on nutrition with my diet, as well as my supplements. I take Vitamin D and Fish oil too, per my doctor’s recommendation. I think you can have all the nutrients and lose weight. I count calores.

I hope you find something that helps.