Arimidex: the bomb or $5 tic tacs?

Well sheeeeit! I always wondered what the hell "sensitive" nips that people are always speaking of were all about.They don't really hurt per say and I can pound my chest like tarzan with no pain but when chicks pinch em sometimes it's like they get the wrong spot and it hurts a little. A sharp little pain is the best way to describe it I guess. So guess my question is: WTF is up with this?:unsure:

I am currently on week 4 of:
400 eq/ week
400 enanthate/week
30 mg dbol/day
1 mg arimidex/day

I have not used dbol or eq before and there is no question in my mind that the stuff is legit. All of it.

Any thoughts, commment, suggestions would be appreciated.