Diabetes Go

Does Diabetes or the medication Metformin cause hair to thin?

I have type 2 Diabetes and up until about 9 months ago I had really thick, wonderful hair. Now, although it’s not falling out and a faster rate than what is normal, it is getting so thin - not only in the amount of hair I have, but also the actual strands of hair, they seem thinner too.
I noticed this thinning shortly after I started taking 1000 mg of Metformin twice a day for my diabetes.
Has anyone else experienced this?