I'm twenty years old, and I'm still technically a virgin. The reason therein is that every time my girlfriend and I try to have sex, I have a massive panic attack. I have no idea why I have these panic attacks, but it's happened at least six times over the past five months. My girlfriend says it's alright to take it slow, but we've been together for over a year, and I'm beginning to get the sense that my inability to have sex is making her feel disappointed and somewhat uncomfortable. What's going on, and how do I fix the problem?