Masterbaiting too much problems

So I masterbait 3 times a day for the past week. Now the tip of my urethra feels like it has somthing is ontop of it. No bumps or anything. It comes and goes. Sometimes I jack off for 3 hours straight. It's turning into a problem. Also my testicals are hurting. Is this normal for over masterbaiting or does my penis have somthing wrong? I've been tested for all STDS 1 month after my last time having sex and I came back clean but I have cold sores type 1 though no bumps pop up on my mouth . also the shaft is a little red is some spots

You need to slowdown on masturbation n porn
Abstain masturbation for 10-15 days and see if there is any improvement with your issues.

abstain at 2 weeks or if you can even one month and your problem is solved