Suggest Treatment For Erection Problem In An Elderly Person

I was treated for congested heart failure 18 months ago. I have resumed my normal routine in regard to my daily routine living. I am a 71 yo white male. No other health issues. I was a widower at the time. Now I am seeing someone getting serious. Sex is bound to come up. I worry about my performance so to speak. I don't have a general Dr. I don't see my heat Dr again in 7 months. I have seen so many commercials for this but I don't who to ask. Would it be alright to ask about getting something before I se him again in the end of January 2018. He is a 2 hour trip away so would like to know if I should call and either ask the nurse or wait for January, I don't want to do either if there is going to be a " no". I didn't expect this type of person to come into my life at our age. She was the girl that away 50 years ago. Instantly felt the same now as if time stood still for us.
Do you think I should ask my Dr about it because I may get a yes.