Hi Irish, I had mine back in 76, and no problems, but each man if differant, but it should get better as you go on, but just keep having sex 2/3 times a week on more if you want, if not sex, masturbate, now the are a couple of things that should help incress your load, I will email you them as I cant put my finger on them now.
Good Luck
vasectomy will not interfere with your sex drive, ability to have erections, sensation of orgasm, or ability to ejaculate. You may have occasional mild aching in your testicles during sexual arousal for a few months after the surge
I had one about 2-3 yrs ago and have had no issues.