Throughout my life I've generally been decent enough at sex. I'm not saying I'm amazing or anything but lately I've been very bad at sex (meaning short-lived in the sack). I have been a little bit under the weather lately but that's never been a huge problem. Additionally this problem started about two weeks into a new relationship I've been in. We had sex before that and I was fine but out of no where I just cant last. I've even tried masturbating, and that seems to happen astronomically faster than usual. What's going on?