I’m 2 weeks into recovery from a “large” disc extrusion (so the notes from hospital mri say). I’be got to the point where I’m not on painkillers in the day but on low dose amitrypiline and tramadol at night. I’m just absolutely exhausted though. I’m trying to eat well and make sure I move enough by moving around the house but will suddenly just hit a wall and feel so fatigued and almost lightheaded with it at various points. Is this normal?