I'm much older and have been through similar symptoms, and 3 surgeries ( shoulder, knee). I know you said your health insurance is not great- but if possible f

I'm much older and have been through similar symptoms, and 3 surgeries ( shoulder, knee). I know you said your health insurance is not great- but if possible find a doctor specializing in Sports Medicine if your primary care physician cannot find a reason other than poor posture/overuse.