I don’t think I’m lesbian but idk

I don’t think I’m lesbian but I’m 14 and I’ve had guys like me and I’ve liked guys but as soon as It starts to get real I feel really sick and without even wanting to find them almost repulsive and ignore and all that stuff. I’ve never really had a girl crush and I doubt that’s the case but ik there are people of all sexualies on here so I want to know if it’s normal to feel that way and I will grow out of it or something a little deeper is going on I really don’t know. I also know that lesbians even if they aren’t atracted to the guy will still be able to be with them so I’m really confused because I can’t even be with a guy without freaking out. I’m just confused and need some advice idk.