The very first time I attempted to quit drinking I had hallucinations for 3 days that ultimately lead to me being committed in a psych ward for a 5 day evaluation. They started off as auditory hallucinations then quickly turned Into full blown visual hallucinations to the point that I thought it was real life. I was in and out of the ER for the first couple of days and they kept sending me home. I thought that there were "ghost people" all around me and ended up naked running down the street until I was ultimately committed.
It was the most terrifying thing I have ever gone through in my entire life so I can completely relate with you being seriously scared. Go see a doctor. This was also my biggest wake up call.