I’m going crazy

I’ve been talking to this guy for 2 weeks now and I’ve known him for 3 years but we have been talking talking for 2 weeks well I feel like I’m going crazy. When I was 16 (I’m 18 now) I had a crush on one of his friends I snuck out gave him my first really bad bj and stopped talking to him. Well I swear I’m not a slut I’ve had a crush on this guy forever we’re basically dating without the label we FaceTime constantly if we’re not doing that we’re texting and I keep coming up with these weird scenarios that he doesn’t actually like me he’s just setting me up as a joke with his friend or some crazy shit like that I’m making myself crazy! I have major anxiety that he doesn’t know about I don’t see him in person since he’s in the army and my past relationship was just abusive and heartbreaking. It makes everything so hard to talk about I have asked before I don’t know how to talk to him or ask him what we are i get so nervous I break myself into a full blown panic attack. Can anyone help me maybe figure out how to tell him without making me seem insane.