research the foods you eat, copper excesses in males can be related to this & zinc is the oposing mineral which can help with sexual function in men. I had problems in this area but once i balanced these out my urinal stream was healthy, no prostate relative factors & a good indicator of correct balance is waking of a morning with an erection several times a week. if i can help you with further info please feel free to private message me via this site, i will show you how you can research, monitor & regulate your minerals for balance.
If you've been having normal and regular erections and find suddenly that nothing is making you erect, you'd want to speak with your doctor about it. Any major change to your function, especially one tied to cartiovascular function is worth consulting doctor about. Your problem could me much larger than erectile difficulty.