Another update. First 12 hours at hospital were really good - probably because the operation painkillers were still active. At home I've been managing this with Tramadol/Panadol at regular intervals - and slowly getting better to the point where I only feel a sharp pain when I get up or twist the torso now.
However yesterday, when I was home alone (damn, Murphy Law) I suddenly felt this queasiness and spent 45 minutes in the bathroom, in pain and sweating like crazy. I waited to see if I would be sick but nothing happened and after one hour I was ok again. I was almost at the point of calling for an ambulance for a visit to the AH but got better before that. Feeling good after that.
Follow up with surgeon tomorrow, one week from surgery. If all good should be back in the office, slowly, from Wednesday.