Wtf happened to me 😐

I was sitting there watching a video and I started to feel really weird. My breathing was very heavy I felt soo dizzy and drowsy!! Lasted for about 3 minutes I Literally had to put my head in my hand and wait for it to pass it was awful. Was a weird tingly feeling in my body 😩 when i came out of it I started to feel sooooo much better and it was like I could feel warmth from head to toe. Wtf is this?? Is happened when I was pregnant a few years ago, also I'm pregnant now 34 weeks! It happened once when I wasn't pregnant so I'm not sure what this is.