So I woke up this morning at around 7 and for some reason I had a really bad pressure on my chest like someone was sitting on it and it was kind of hard for me to breathe ...I trued to lay back down but it only got worse then I started getting nauseous and ended up vomiting , once I vomited it was like the weight lifted off my chest and my breathing got back right... So I lied back down but when I woke up the second time it was wayy worse ,I had to use the restroom and when I was done I instantly had to vomit again and once I was done this time I started sweating really bad and when I stood up I got lightheaded and as I was walking to my room I blacked out and landed on my bed and I woke up 5 seconds after .....does anyone know what could be wrong ????