I think I have some psychic abilities but I'm not 100% sure. Either that or I'm losing my mind.?

k so I'm 22. My whole life I've been able to accidentally finnish other people's sentences, thoughts and I can pick up on the feelings and motives of other people, like to the point where i feel them myself. I have never tried to expand on this and I can't do any of this on command it just happens and constantly. i have also been experiencing allot of deja vu lately. also i find that sometimes when i wake up in a panic ( from a dream ) weird things happen. like this one time I was eating cookies before bed and I dosed off. I had a cookie on the trunk beside my bed. when I woke from a nightmare the cookie was suspended in the air and dropped at the same time i opened my eyes. Also lately I have been feeling a presence of sorts. I can't explain it but I find myself constantly looking over my shoulder whenever I'm in my house.especially in the basement. Am I just paranoid,losing my mind or am I on to something??????