Thanks for your replies.
Chapelle - your reaction sounds identical to mine.
My LLMD called today and told me that it was a herx (my first one since I had only been on doxy for 6 days). They asked me to stop the doxy for 3 days and then to resume and note if I have these symptoms again. So, I'll give that a try and see what happens. But, I really do think I will remain very sun sensitive regardless of a herx or not. I can handle the sensitivity, but I don't want the peripheral neuropathy.
Thanks