I feel really weird. like im not me anymore?

well lately it feels like everything around me is soo far away and distant, like when im talking to people, there right infront of me, but it feels like there 10 metres away. (really hard to explain) yesterday feels like it never happend. like i dont have any memories of the past couple of months, i cant even remember what happen yesterday, now doesnt even feel like anything. its not like nothing feels real, just like im not seeing or feeling anything, im just on auto pilot.i have NO emotions anymore, im not happy im not sad, im nothing.. even when im typing things i cant put them into sentences properly. i feel numb i gess. i cant think the way i used to. what wrong with me, i feel so lost. its like my mind and my soul have forgotten all about me, and just left my body?? sorry even to me this is making ABSOLUTLY NO SENSE sorry please try and help me??