[lil fu fu girl]

Lymes Disease

It sounds like Lymes to me. Usually you develop a fever with the exposure. I have included a link with pics of Lymes. It sounds like you have caught it in time though. It can be treated at this early stage.
Sounds like you and your furrbaby have had one heck of a week!
I hope you both are feeling better soon. Sending well wishes your way........