I had a sinus infection and was prescrived Amox 4 days ago. 24 hours after taking the first pill I started feeling testicular discomfort (it feels just like blue-balls, but doesen't go away if I masturbate). The pain has not lessened or increased since, its pretty much just stayed the same. I am 22 years old and sexually active. Do you think the feeling could be a reaction to the Amox or maybe because of a sexual encounter I had 2 weeks ago?!?!