So I've been pretty stressed lately and I noticed that my erections were not as strong as normal. I talked to my doctor, and he got me a sample prescription of Levitra. I took one 20mg tablet. I have not had an erection like that in a long time. I was rock hard. My wife definitely noticed a big difference. I don't think I was any bigger, but much much stiffer than normal. I was even able to go a second round, with basically no down time. Pretty awesome. I was also ready to go the following morning. However, I was very flushed feeling and I woke up in the middle of the night with a horrendous headache. Had the headache off and on the following day as well. I think next time I use the Levitra, I will try a half or maybe even a quarter dose.