tired of pain

I’m so sick of having forever pain syndrome. I went to the grocery store, took a 6 hour nap, now I feel deathly ill and like I was on my feet all day with no breaks. It’s not like I use mobility aids either, since A. the trip was short and B. I can’t afford them. I work full time retail too with a job not friendly on mobility aids (i work around car/golf cart batteries so Im using both my hands, so I’m sure that adds to the pain. Nothing helps either. I used a cane for a short amount of time, hurt my wrist. Can’t afford any other kind of mobility aid or brace either, i also do notttt have the space for them. Pain meds don’t touch me since i have built up such a tolerance. Tried physical therapy for a bit, made my pain and sickness so much worse. Don’t qualify for disability, and have an immense fear of doctors so half the time if I know I need to see a doctor, I talk myself out of it. Someone please give advice on pain management. (let me make it known I only have hEDS when it comes to physical disabilities)