First thing was hearing voices of people I knew calling my name when they couldn't possibly be there. Like, I would hear a family member that lives three hours away by car.
Then I started seeing objects, often while driving. Once on a lonely Nebraska night on highway 2, a giant radio tower suddenly appeared in front of me in the road; and then dissipated when I drove through it. I also see sillouettes of people occasionally.
Worst visual I have gotten was a very real looking man trying to break into my house during the day and it freaked me the fuck out. Happened twice