I think i am hallucinating?

I get tunnel vision, and during this time everyone i look at, their eyes, the iris, is white and glowing, like a neon light, my ears block and just hear distorted noises and the ground is no longer stable. Only after i fall or i yell or someone shakes me or there is a loud bang it all goes away. It's last for about 1 minute - 5minutes at a time, these have been the worst times of my life. This has become quite frequent and scary now, what do you think is wrong with me? what am i afraid of?