Ok I took a hot shower.... then I put the shower on REALLLY HOT as hot as it can get and put it in the corner of the tub.. bent down and just took a bunch of deep breathes for I say a minute as if it was a sauna because that is how it felt when I put the water on that hot. I must have sat up to fast im not sure, but that feeling of lightheaded/spaciness was such an ABRUPT feeling I have no idea how I didnt faint, My face got so hot, my heart started to race, and I got a wierd feeling in my mouth like a panic attack was going to start and I told myself ok relax, just relax etc. Maybe panic attack wanted to happen becasue it didnt like the lightheaded feeling? Anyone ever get it, to that extreme? Ive gotten where u get up to fast and you feel the rush for a second but this I felt for the second and then it just got WORSE for like 10 seconds. Then I calmed down. Does this mean something more serious.