Back Pain

I am posting here because I seem to learn more on reddit than my primary care doctors. I am 43 and within the last year I have had lower back pain on/off and it is becoming a weekly issue. I am used to my kegs giving me occasional issues. I've been doing on-line PT all summer. Tylenol and Advil don't seem to help which is what my doctor suggested. I'm allergic to Bachlophin. Most muscle relaxers make me want to nap. I work with kids full time and need to be with it. I'm not sure what's causing the pain. I did rule out kidney issues. I had a Selective Dorso Rysodomy (SDR surgery) in 1988 when I was in Kindergarten. I'm wondering if there are some long term things not known yet. I had pins and plates put in because my hips dislocated in 3rd grade due to my hip sockets not being deep enough because I didn't start learning to walk with assistance until age 3. Currently ambulate with arm crutches or use my wheelchair. The pain is getting annoying because I wake up fine and by afternoon I hurt. My doctor tells me just to go to PT. Not helpful when I'm at work.