my son came to me and told me while he was w his gf last week he couldn't get an erection. He was very embarrassed and didn't know what else to do. I tried explaining that will happen off and on the rest of his life but he was instant he wants to see a doctor about Cialis.. Hes a very healthy young man that works out at the gym daily, watches what he eats, will not drink sodas so I don't know what to tell him.