For Christ Sake mate!
Just re read what slim slag told you to do and go do it one step at a time..... go pass the bloody exame then do the rest.
Be reassured....slim sag has a good track record on accurate medical advice.
I sense you are now in danger of wasting your valuable study time by becoming overly concerned about the details of your condition.
I am also very guilty of being "totally focused on the condition" and consider it a side effect of a new interesting medical problem in a formerly totally healthy individual.
Good luck with your exame...just be ready...locked and loaded....you forget 50% the minute you walk out the door anyway.