I had a tummy tuck and gynecomastia surgery in September 2014. Ever since I have had terrible Erectile Dysfunction problems. My penis can get erect but loses it stiffness almost straight away. This even happens when I use drugs such as viagra and cialis. Before my operation I had no such problems, I used viagra even then due to anxiety/performance issues, but had no problems maintaining an erection. Can my surgeries have caused me to develop these erectile problems?