The Herx reactions start when the abx levels are high enough to start killing the lyme bacteria. Sure looks like you're there already. The psych symptoms are bad, maybe you could talk to your Dr. about
phasing the abx in more slowly. It's not necessary to kill it all at once
I found the severe anxiety, depression, crying spells, etc,. usually last 3 days or so. But they can be serious problems on their own. You should probably be treated for anxiety and depression. Please ask for help if the depression gets too bad.
I understand about the Xanax problem. I had to wean off Klonopin once before and it wasn't fun. But ... the anxiety is disabling and I just can't function at all when it's bad. I look at it as taking care of the most important things first and I'll have to sort the rest out later. I know I'll have a problem getting off klonopin again - but I can't do anything when the anxiety gets bad. And then it's really difficult for my wife to deal with my anxiety episodes too.
Lyme, anxitey, depression, chronic C. Pnuemoniae
"... expect the unexpected ..." (O. Wilde)
"I am an old man and have known a great many troubles, but most of them never happened." (Mark Twain)