I m having constipation, straining to pee, back pain..i do have chronic back issues, spinal stenosis, bulging disc, scoliosis surgery and I m on main meds and go to pain management for it...and now my ankles are swelling too and my belly looks pregnant and in having cramps like I m about to start my period ..i do have my tubes tied and had an endometrial ablation but I m still having periods...what could be causing all this at once?