That is wonderful, wonderful news about going to see the LLMD!
That could turn your whole life around, seriously.
Lyme can cause a sore throat, so can Bartonella which can also be tick-borne. I am not sure about Erlichiosis.
STARI, or Master's disease, like Lyme disease (many believe that STARI is in fact actually Lyme disease), is serious and is not "easily and quickly fought off by the immune system".