Is it possible to be feeling like one of my biggest problem symptoms is worse from a side-effect?(can't walk good because of stiff and weaker legs now; I hang onto anything!) How can you know the difference between herx and side-effect?

But a herx is suspected when the symptom is a symptom known to be a Lyme symptom. Your worsening of your usual Lyme symptom is seemingly a classic herx.

Sometimes, however, you will have symptoms [which are also Lyme symptoms] that you've never had before.

Hope this helps!

In checking my drug handbook, I find no SE, such as the one you have described, listed under Doxy.

You will find that pharmacists are much more knowledgeable in this area than are most physicians. I would call a local pharmacist and get their input.

I am with Lymetoo. Sounds like a herx to me.

Thanks for everything. I hope this will pass...5 weeks and counting...