I need clarification. Please Give me some advice!

Hello, I really hope I get some help with this. I am 18 years old and a freshman in college. However, I have had this problem, of needing someone to come into the bathroom with me or escorting me down a large hallway or elevator. They think its because I am chicken and can't do anything without "My mommy" so to say. But I think that this is a major problem. When I go into the bathroom I feel pressure on my face, It feels as if eyes are watching me and someone is going to hop out of the stalls and kill me. If i am walking down a large hallway, the pressure in my face comes back to the point where i have to cover my ears with my hands and become paralyzed because the "pressure" gets too strong for me to handle and I just cry and/ or I feel someone is watching me, like someone is gonna run out and kill me. if I am in an elevator, I must check a million times to see if I am going to the right floor, if I pressed the wrong button for example the time I was at a hotel and I was suppose to go to the 3rd floor but pressed the 12th floor. I panicked, the pressure returns and I just cover my ears and try to get to somewhere safe or back to my floor. Also in an elevator, I dont know why I do it; but I picture my death over and over again. Like the roof is gonna crush me or the rope is gonna snap. There are more instances such as getting lost, running out of gas, and not having money to pay bills.
These thoughts are really affecting my life! Why is this happening!

The first half almost sounds like some sort of psychotic disorder especially the tactile stuff and the paranoia similar to schizophrenia. The bottom half sounds like anxiety I get the same thoughts as yours when my anxiety is really bad and I was diagnosed with g.a.d. I am no doctor but you should go get checked out to see what they think also.

I was scared that my apartment was going to catch on fire and I would be trapped inside. I had stuff in front of my window and my escape route was blocked. I tried to sleep on the sofa since I was closer to the front door, but I still couldn't rest. So, I had to move stuff so it wasn't in front of the window anymore. I think making sure you have an escape route will help you feel less scared.