Sorry you are going through this Dahlias. I never went through this so I'm not much help.
If I did experience what you did I would stop the azithromycin. But that's me. I did get sick when I tried Doxy but all I did was throw up and that was enough for me. I said to myself "no more Doxy" there has to be better ways to treat chronic lyme which I found out later on there was.
Wish I could be of more help,
12 years well ~ used Dr. Jernigan's protocol from his book about
Biological Medicine (used Borrelogen, Microbojen and Neuro-Antitox).
I still detox even though healed and drink Green Vibrance. I come back to help others for others helped me when I was sick. Pay it forward!