Okay, So now in photography also today, someone had a nose bleed. and all of a sudden i started feeling lightheaded again. I didn't pass out, but it was close, it felt like everything went by so fast, and i dont quite remember everything that happened. A simple thing like a nose bleed. I used to SI and non of that ever bothered me or made me pass out. I have seen blood many many times before and never have i passed out. and it seems like i feel more like this in photography.
Maybe its something to do with the staple thing just still subconsciously in my mind when i see blood now or something. I hate it now

Now i am scared that i will pass out again. any way to help this so i don't pass out when i see blood or anything like that anymore?