Thinning and balding

Recently I’ve noticed my hair is thinning. It looks like I am balding or something. I know my hair is thin but not as thin as right now. I can’t think of any reason why my hair is thinning, maybe must’ve been stress or lack of vitamins or something? I wish I had nice hair like my daughter long, thick (not so thick just right) and shinny. Got to find a best hair loss treatment before it’s too late.