I don't think my bladder's quivering, because my urination's normal, but it's in the same area. Ever since I got to college some muscles above my groin but below my pantsline quiver a lot when I lie down. It's not painful but it's distracting.
Could it be because of my diet? I'm eating a lot more carbs here than I used to. Does anyone know why this could be happening?
Foreskin too tight when erect
Swelling after Circumcision
White "dots" around the head of my dick? 
Pain discomfort around navel area for four months. 
Big bumps on back side of penise and frenulum looks misaligned after circumcisions
