Sounds like you might have some of the co-infections that are still active. When you are given a drug that is good for lyme and not necessarily good for treating some of the co-infections it can present a problem. Lyme bacteria replicates very slowly, however, is a very strong disease and usually keeps the other bacterias and viruses in check. Many co-infections can multiply very fast and can actually be worse than lyme, once the lyme bacteria load is reduced.