Four months is only a short time since your C-section. Your body will not have fully recovered. Backache
is very common following delivery. If you do not usually suffer from backache then this may be related to the changes your body has undergone during pregnancy
and the postnatal period and is most likely to improve with time. You can try paracetamol
for the backache. Both are safe with breast feeding.
The swelling and tenderness above the stitches is also likely to be normal. If there is redness
, pus or you have a fever, these would be signs of infection of the wound.
It will take many months before your abdominal muscles fully recover and your abdomen returns to the pre-pregnancy shape.
I consider the symptoms you describe are all normal for this stage after a c-section delivery.
Dr K A Pottinger,