Why do I feel like I am in a dream?

I smoked weed 2 nights Ago (33 hrs ago) and I feel like I am stuck in the last stage of being high and I feel like I am in a dream. I only smoked about 3 or 4 puffs and then my heart started beating fast like it usually does and I went to sleep at 12 two nights ago/ 33 hrs ago. All yesterday I felt this feeling and I was hoping for it to be gone today but I still feel like I am in a dream. It is kindof hard to stay focused but I still cann. And i bmx but it is alittle harder to keep balance. Can someone please help me out? Thanks so much