It has been 3 months since I had a 2 level lower back spinal fusion. L4 L5, L5 S1, I was wondering how long are other post op patients able to be up and run errands. Some grocery shopping, doctor visits, and such. I am only able to be up and about for 4 to 5 hours then my lower back really starts hurting. Just wondered how other patients are doing at this stage of the recovery.