Been there just before Christmas!

Lots of pillows for sleeping - upright will be best for quite a while. I am only just back to 2 pillows now.

Painkillers - try to get ones that don't have codeine in them if painkillers are making you ill. Codeine is instant throw-up for me, but once doctor gave me some without, I was able to medicate and eat.

Shower / dressing - buy some loose neck / wide neck t-shirts or button shirts and it will be a while before you can manoevre into 'normal' clothing.

shower - take a chair into the bathroom so that when you come out of the shower and feel completely exhausted, sit down, regroup and then dry yourself and get dressed.

Being a baby - part of this is because you are in shock - and will be for a while. Accept as much help as you can - start to potter around when you are ready. And keep on popping in here for lots of support and suggestions.