I do have Psoriatic arthritis ( PsA) I have been on Enbrel injections and it wored great for 1.5 years, it just stopped working after 1.5 years. Then trying Humira and I got the rare side effect of causing my Asthma to stay flared up, So now I am on Xeljanz and it really helping.
Diagnosing PsA isnt that hard.. A simple Blood test will tell you if you have high imflammation rate, I had simple xrays of my feet, Knees and hands and it was there , untreated PsA will cause chronic degeneration.
I did have to see a Rhuemtologist to get everything sorted out. I have to see him every 6 weeks to monitor my blood to ensure my kidney and liver are healthy.
I also have FIbro so between it and PsA I was in agonizing pain daily.
Reach out for help and get testing done and then you can decide if you want to take medication for it.