Just for future information:
many vets do not test for all the TBDs. Usually, the only erlichia tested for is canis and there has been a dramatic increase in other erlichias. I recently found out that when you request a TBD panel and your vet uses Antech or Idexx, they only include erlichia and RMSF--not even babesia. If you request babesia, the Antech sends it to Protatek, so why not use them in the first place (or North Carolina State). Also, several dogs have had full panels here in Texas which have been clean yet the dogs responded to doxy treatment.
She was much too young to go yet I know it hurts.