i had the exact same thing a couple of weeks ago. I didnt do anything until i was sure it was gyno. Believe me....you'll know. Just watch for tenderness and a small lump. I woke up one morning and mine were noticably sore in the nipple. I ran letro for a week 1.25 ed and then taperd it off the next week to 1mg/.5/.5/.25/.25.25 and added .25 adex on the third day of that week at .25mg eod. I am still on the adex and have had no other symptoms.
Its really up to you if you want to go ahead and start a gyno reversal. My opinion is wait until you know its not just the shaving though.....Just IMO.....
BTW, just for shits and giggles, what are your stats? also, have you ever had sides before?