For almost a year now i have seen something wrong with my left testicle.

I've posted for help m=a few times on here but no-one's helped me whatsover.

There's a swollen line going down the center of my penis which has never been there before. It also causes my testicles to go red when i have an erection, my testicles also go in to one after i have had an erection.

PLEASE help me. I've been to the docs 4 times and they've told me to "take it easy" which is not what i want to do, i want to get this fixed.