I get a specific feeling in my head when I’m about to start a panic or anxiety attack. It’s at that moment where I can usually just like… Take a breath, relax, and try to avoid the issue calling it or I succumb and deal with it. I get the warning feeling in my brain though.
In other physical things, I can slow down or accelerate my heartbeat on demand and I’ve shown my SO when we were messing with a heart rate monitor. I can also make my heartbeat skip on demand but stopped that after I scared the shit out of an ex when I showed them. Also the doctor told me don’t do that anymore after I told her it was a thing.