Yes, I dislike people getting physically close to me (assuming I haven't asked them to.) I am very conscious of the boundaries of my personal space. I also hate it if people walk too close behind me - since I can't see them, my anxiety is multiplied.
As PunkyKat said, I can feel people's presence - sort of like an electrical charge - maybe it's just their body heat. When they get close enough for me to feel it, it creeps me out. If they get close enough for me to feel them breathing down my neck, I just about crawl out of my skin.
I had a bandmaster in the Army who would always stand about six inches too close to people when he was talking to them. It was all I could do to keep from backing up (if I did, he would step forward.) Just about drove me crazy.
_________________
"I am likely to miss the main event, if I stop to cry & complain again.
So I will keep a deliberate pace - Let the damn breeze dry my face."
- Fiona Apple - "Better Version of Me"