About a month ago I noticed some pain when my cock bent back towards my belly button when hard every so often. After about a week I decided to go to the doctor and she felt around my penis and balls and found a small lump on the epidydimis that turns out to be a cyst. Before that she gave me antibiotics incase the pain was from any kind of infection. Pain went away for a bit, but the past couple days it's back with a vengeance. It's a sharp, tight type of pain that's coming from the sensitive spot where the head and shaft meet on the underside, but it's not on the surface, it's inside. Anyone have this pain before or know what it is? It's driving me crazy. Nothing is leaking out or anything and it's not an STD. It's only when it first leans back towards or on the belly button that it hurts bad, then it fades after that first move. Any clue?