Mycoplasma or Lyme joint herx?

Wondering if anyone has had a herx from treating mycoplasma? After getting sick last year and being diagnosed with Chronic fatigue syndrome (mayo), Firbomyalgia (state university Hospital), etc, I had went on 6 weeks of doxy with no improvement OR herx after a LLMD said my IGENEX was positive. I had no changes on doxy and stopped. Later I found my HHV6 titers were high and did antivirals with no improvement.

Recently we changed back to Lyme again and I just got off six weeks of IV Rocephin, cefotaxime, and meropenem (switched during treatment for varying reasons). Maybe some small herxes along the journey but the picc was pulled last week. I was put on doxy oral (200mg a day which is low compared to last year). I didn't expect anything from Doxy based on last years failure. After a week my barely noticeable joint pains that hadn't changed on IV, went crazy painful and have come on like never before and got the nausea, extreme weakness, etc to go along with it. I cut back to 100mg doxy for two days and now none today but the symptoms persist and the joints are hurting like never before. I thought if it was a herx it would subside by now.

I looked up some recent tests and seen that I have some mycoplasma Pneumonia igg antibodies that have been rising over the past six months and am curious if I could have joint problems from mycoplasma? The reason im asking is the IV mix of drugs did nothing for joints one way or the other and I can almost recall last year doxy did make my knuckles less stiff. Now one week on Doxy they are going crazy..Im wondering if another bacteria or mycoplasma is being hit by doxy that the others in my IV couldn't? Then I read one can herx from Doxy if you have rheumatoid arthritis, which I haven't been diagnosed with yet...Any ideas? Oh, and of course to muck it up more, I had been taking one week of Cholestramyne to remove toxins that I have been taking on and off before...