smother episodes?

❄️Athena❄️ • Mother of Henry✴️Stay at home Mom👏Full time student❗❗

That's what my mom calls them but it's basically when you aren't doing any work but your heart rate skyrockets and you all of a sudden can't breathe and basically feel like complete shit. Anyone else getting this? What is it? Should I be worried? My mom wanted me to go to the ER but I just drank some water and laid down and felt better after an hour or two. Thoughts?