A week after my c-section, I was still periodically crashing. I was up and moving, I wasn't bleeding a ton, and I was handling pain by alternating Motrin and Tylenol, but every few hours o would just get really sleepy. Falling asleep in mid-conversation, nable to stay awake kinds of sleepy. My baby was in the nicu and I was discharged from hospital, so I didn't really have the option of staying in bed, but I'd wind up napping in the recliner by dd's crib. The nurses were not enthused about kangaroo care that week, and in retrospect, I think they were gently trying to say they were really worried about me dropping the baby. They were also less then thrilled about me driving.
The doctor's opinion at that point was that pain is tiring (even when you're "managing" it) and healing takes energy.
Also, digestive processes were really shockingly painful at that point. There's technical tmi if you want, but needing to poop five days post c/s I s the worst pain I can recall feeling. Labor did not make me want to scream curse words. It was brief, but I was gald I didn't have to try and act professional.
By two or three weeks, I felt better and could do more. Surely one of the benefits of planned c-section is you can arrange some guest lectures?