Re: Nipples hurt soooo bad !! -- Update in OP
You cannot see thrush on your nipples. There is no exam or test for it. Please don't tough out the pain if it is thrush, only to regret treating it sooner! The longer you wait, the worse it can get.
I'm sorry things feel so daunting right now. I don't know what your diet looks like now, but perhaps a whole food diet could turn things around for you.