RA and PA are often undiagnosed Lyme disease that is missed by doctors who rely on faulty laboratory tests. "Lyme arthritis" is a common disease presentation. It is critical to figure out whether there is an underlying infection because rheumatologists tend to use steroids and other biologic immunusuppressants that will only make things worse in the long run (even if they provide temporary relief).
Here is a great symptom checklist to determine likelihood of Lyme:
https://docs.google.com/viewer?a=v&p...zM2MjM1NTMxYmI
Natural anti-inflammatories such as turmeric/curcumin may be worth trying. I hope you find answers OP!
Lax joints may be the hypermobility variant of EDS. In the EDS/Lyme population, the joints are particularly vulnerable to infection.