I was cleaning and ended up falling asleep because I was tired and when I woke up I remembered that I had things to do. As soon as I got up from bed I got terrified because I felt dizzy and a little confused. I thought it'd leave but after walking down the block to my friend's house I sat down and I recollected myself a little but I still feel a bit groggy. Has this happened to anyone else? Should I go see a doctor?