This happened a few months ago now and I found a diagnosis that fit the symptoms but i've lost it and can't remember what it was.

Basically I was in the shower, when i started feeling hot, my heart was beating fairly fast when suddenly in a short burst it became very rapid, I started feeling dizzy and faint, and my legs became weak and I couldn't stay standing, i think it left me a bit sweaty to, although difficult to tell in shower with water on me anyway heh.

It lasted a minute, 2 minutes at the most and hasn't happened since or before that and I've never had an issue with my heart before. Can't remember the disorder name but the symptoms fit exactly what happened, though thankfully the issue wasn't serious. Anyone know what it might have been?