hey guys,

for some reason I cannot hold an erection longer than 5 minutes at a time, either watching porn or with my girlfriend. Last semester I did not have this problem and could hold it for a lot longer and could get hard at any moment when with her or by myself. I am in good shape, just started going to the gym again. However I have been sick all semester so I have been under the weather with allergies/cold taking allergy medicines ect...

Any thoughts? Thanks!