I'm not sure if he used thinning shears, but I suspect that's what they were. I wish I had known that they were a big no no several months ago! I just hope my hair will eventually fix itself.
I tried to figure out the porosity, texture, and density roughly at home the other night just so I have a basic knowledge of what my hair is like, but I'm still not 100% sure. Seems like my hair is pretty fine, maybe a little higher porosity than is ideal.