I don't consider myself to have thinning hair but my shower fall out looks like your 2 and 5 every time. I only wash it every 3 days. I think it's normal. When I straightened my hair it shed a lot through the day. If I wore fleece I'd always be able to pull lots of hairs off it at the end of the day. Now that I'm curly I don't shed around the house but only in the shower. I was worried at first but this has been happening for 1.5 years(since I went curly).