Blood, do you find yourself oftentimes "ill at ease" during social occassions????
I'm sensing that perhaps, you have a bit of "Social Phobia" rather than anything Paranormal. Might be interesting for you to look back on the feelings of meeting new people and see if it occurs with ALL new people, or only one here and there.
If you're getting this feeling while meeting all new people, I'd say that it's more of a bit of a "Social" thing rather than a paranormal thing. Lots of people have a bit of insecurity/anxiety at meeting new people. It's likely more due to a fear of "rejection" or "possible embarrassment" than anything paranormal happening.
If this is only with one or two people and it doesn't happen with everyone, then it's possibly a paranormal thing. You could be picking up on "negative vibes" from the person/persons. But, obviously, NOT every person would give you this vibe. As sensitive as I am, this does NOT happen with everyone. Only the odd one here and there. So, if it's quite frequent.......it's likely more of a social phobia than a paranormal cause.
You might want to just run this by your doctor if it's bothersome. There are some techniques that can easily be learned to ease social anxiety.
~Louellen~