Last night I was laying in bed and decided to get up to grab some water and when I got up I felt like I got up to fast you know when u get a little dizzy and ur vision goes Kinda black and blurry for a minute?. well usually it goes away after about 7 seconds but this time it got worse. I felt so dizzy I could barely walk i had to use the walls to help and still almost fell over. My head was hurting and my vision was blurry like it kept zooming in and out. I was having a very hard time breathing and I kept thinking I wasn’t getting enough air. I got supper hot I jumped in a cold shower for literally 5 seconds because I felt like I was going to pass out and it lasted for 20 minutes. Has anyone experienced this?? Is this concerning?