I have read several posts that talk about taking pain meds for several weeks post op. I am now at day 6 after L5/S1 fusion. I have not had to take any pain meds today and still feel good. I am worried that these pain meds are making me feel jittery and flu-like. Has anyone else felt this way after the surgery? Was it the pain meds or is it left over from the anesthesia? Thank you for any feed back.