I consider myself lucky to not have needed a C-Section. I can honestly not imagine what it must be like to not only be overwhelmed by your birthing experience and newborn but to all of sudden not be able to do regular things. So in this case, my answer is from research and not from experience…
Here is the answer from my book Babies 0-6 months:
Once you’ve left the hospital you should arrange to have as much help around the house as possible. Move slowly and take it very easy. Have a pillow around to put against your stomach when sneezing or coughing to help with the pain, use one behind your back when sitting. Don’t lift anything heavier than your baby. (Your doctor/midwife will let you know if that is even ok during the first week). You will experience all of the other things that women do with a vaginal birth (such as Lochia, cramping etc.). Some women recover within a few weeks, most take 6-8 weeks for full recovery. Some tips: When you stand up, stretch your arms above your head to un-cramp your stomach muscles. Check your stitches every day to rule out infections. Drink lots of water to help flush out potential infections.