10 days post op of Liposuction, I woke up shaking and on a drip as my BP drop. Is this normal?

I had lipo 10 days ago. under a general. woke up shaking and on a drip as my BP was low 80/25. I had a few doctors come to check my BP was increasing. By the next day it was almost normal so I was discharged. I asked my surge on my 1 week check up if all went well and he said yes, didn't mention why I needed a drip and BP monitoring. I'm just wondering if this is a normal thing to happen after lipo or if I went in to some sort of shock.