Hi. I'm not sure if this is the right place to ask this, but I'm trying to figure out if I have a psychological issue or a medical one.

I've always had a "non-stop" brain that is constantly whizzing a billion random thoughts through my head 24/7 (literally driving me crazy to the point I can't sleep or function sometimes), but lately, at random yet more and more frequently, I've been having this "thing" where I feel like there's something wrapped around my throat and I cannot breathe (even though there is nothing physically there). My heart races in panic because I feel like I can't breathe and I'm gonna pass out. Sometimes this feeling lasts half a second, sometimes it lasts a minute or two.

I'm wondering if this is a psychological issue, or perhaps a medical one (my throat feels like its being closed off), but it happens at the most random times, more so when stressful and emotional thoughts enter my brain.

Is this something I'd go to a GP about, or a hospital? Does anyone have any suggestions on what it is, and how to fix it? (Hopefully I've explained it well enough). Many thanks in advance.