For 6 mos ive had low left rib dull pain and also some left side back and hip soreness. went away for 1 mo. then back. have had full workup including scope and imaging with no findings. am perimenopausal and generally stiff. do i accept it as aging?

Rib pain YOUR BODY IS TALKING TO YOU! Listen & take good notes. When does it start/stop? Where does it go? What makes it better/worse? How long does it last? Medication helps/worsens? 
If you think it is something you eat/drink/do stop it & see. If better, go back again & retest until u r convinced it is something u should stop. Then stop it. Discuss with Drs. You all will figure it out.