How soon is too soon to tell someone you have anxiety issues in relationship?

I have this terrible anxiety when it comes to relationships. It's like I start to randomly worry if I'm good enough, if they are talking to other girls like they talk to me, if they are using me, etc. So far this guy I've been talking to seems great, but it's only been a week with 2 dates. I noticed on snapmaps his location was at his house but another girl's bitmoji was there too. He has 4 other roommates, we all including the girl go to the same college. I know I'm super paranoid because of a paat relationship that really fucked me up. Should I tell him about my worries and anxieties or wait longer?