I've recently been struggling with a feeling that I'm not real, and I need some reassurance: how do I separate this from the feeling of genuinely going insane?

I don't believe that I'm not real. I have fun, I have friends, I enjoy college and I feel very present when I'm exercising, etc. And I can get rid of it by talking to loved ones or watching a favourite show. But I think my biggest anxiety is that I will *start* to believe it. 

Sometimes the idea that I'm not real is so terrifyingly "real" that I feel sick, and it gives me a panic attack. 

It gets worse when I'm tired or overwhelmed or even too warm, or if I watch a disturbing TV show or film. 

Am I going crazy? Does anyone feel the same?

Wishing you all well xx