Cat scratch/bartonella
It was one of my theories as well. I went to a lyme doctor and didn't even tell him I had a cat and he said my symptoms are consistent with bartnella (but he suspected from a spider or tick bite). I do get bitten by my bratty cat quite often though. She gets mad if I stop petting her. I don't know why they call female dogs bitches.
https://www.nlm.nih.gov/medlineplus/...cle/001614.htm
http://www.ashdin.com/journals/jnp/235640.pdf