So glad she's playing again! That's always a good sign! If she's showing a strong positive, the extra weeks of doxy are a really good idea. If she's still strongly positive next time, see if your vet will give you a couple weeks of Amoxicillin next time. We have good luck using doxy/amoxi as a one-two punch for anaplasmosis and lepto. Might work for ehrlichiosis, too
"We are--each of us--dying; it's how we live in the meantime that makes the difference."
"It's not what you gather, but what you scatter that tells what kind of life you have lived!"
"Be kinder than necessary, for everyone you meet is fighting some kind of battle."