What is wrong with me please answer if you can?

i know i am going to sound crazy but i would love to know if anyone else has this problem and if so can you tell me what it is or called .ok sometimes when i am out day or night and all different places i Sense death sometimes so bad i feel like i can taste it when i told my mom how i felt she has always said for me never to get out of the car and to leave the area i feel that way in .but than a couple of times i can see someone and i cant look at them or i will throw up i saw the most clean cut guy nothing wrong with him but he made me so sick at my stomach i had to look away and for a months after the though of him made me sick .eather thing doesn't happen all the time but when it does i feel bad .i have only told a few people about this and now my youngest daughter has had a similar experience .please no jokes if you can answer this i thank you