Maybe it's because you hadn't had a good beer in a while?
The local pub near work had $2 pots the other week so we all went down and someone convinced me (ok, it was me
) to have one. I felt it tasted odd as well and it wasn't as refreshing/exciting/nice as I thought it would be.. and I kind of felt let down.. and I haven't even had a transplant yet.. Maybe it's a kidney failure thing.
Perhaps you should try a few different sorts of beer - perhaps you will like a different style to what you had in the past? I understand you can't drink heaps of booze after a transplant (boo hoo!) but some isn't bad is it?
I'm envious!