Mort,
I do not know your age , but you could be low Testestrone and that could cause your ejaculation problem.. Low T causes a man to have a hard time getting over the edge for a climax.. Does this happen with masturbation or just vagina sex?? My thoughts, ojsam
you never said what surgery it was. My 2 cents. Speak to your doctor who did the surgery on you and he will guide you over future course. Given your circumstances, you are best advised to seek professional help.