just started my 2nd Xiaflex round monday morning... typically, my penis hurt like hell within a couple hours, and id wake up in the middle of the night with pain from an erection.... however, this time, nothing at all... mild pain when i got the injection, and no pain, swelling, discoloration at all.... has anyone else had the same luck? i had heard the first round was usually the easiest and round 2 had a lot more swelling/pain?