I have had major problems with gyno in the past to the point where I hade to have surgery. I would not say for sure that it is gyno from what you are saying, but dbol can be a major gyno starter. When my would flair up my nips would get itchy and sore. I would just take some nolva to be safe and if that does not do it alone stop the dbol. You don't want it to get to the point where lumps form.
Hope this helps.