49 YR OLD CAUCASION FEMALE, 5'5' 135 lb. have had lower back pain off and on 15 yrs. relieved by adjustment of osteopath usually every 4-6 months. did not follow exercise directions. reoccured May 6 2003, was not relieved after adjustment , severe pain only relieved by lying down. Internal med Dr. ordered MRI showing mild disc space L4-5 & L5-S1 with mild loss of signal consistant with decreased water content degeneration of disc.Large central disc herniation present L4-L5 encroaching significantly on anterior thecal sac resulting in mild compromise of lower neural foramina bilaterally.had microdisectomy in Memphis May 29 as outpatient.Resumed job after 2 wks mainly riding to see respiratory patients. Started P/therapy JUNE 16, mostly pelvic raises, semi lunges with turning arms to left and right, alt arm & knee press. My concern is am I doing to much too fast. back o. k., but knees beginning to hurt from stooping to pick up things, back sore higher than surgery from exercises. Also concerned about reading i would have permanent weakness at that disc, and is there anyway to solve the water loss in discs. Some neuro sites had stricter post op directions with lifting no more than 10lbs. for 1 yr. I also wonder about shoe heel hgts as I did wear 1-3" heels daily (flats only since herniation).I would like to strengthen back and not have this again. thanks for suggestions.