Hi appollogod
It doesn't really sound like you're enjoying a drink to me.
3 pints is a lot above 2 units too.
but...I'm sorry - we cannot give medical advice here. It's against our rules.
Noone here knows your clinical history and noone here is a Doctor.
The best advice is I can give you anyway is to see your Dr again - or a different one if you feel a second opinion if needed.
D