46 year old male with lifetime of sexual activity....over last year have become involved with younger woman with huge sex drive. On a few occasions I haven't been able to get or hold erections....not often but enough that it bothers me. I have tried all kinds of drugs...viagra, cialis, over the counter stuff....they work but I don't like the side effects or having to use chemicals. Is there anything natural out there that gives you that extra sex drive you need to ensure you always get and hold a good erection...or should I just assume I will have that problem because I am getting older...I don't want to lose it.