personal space

whenever people expect a lot from me, the first thing that pops into my mind is a picture of me standing over a cliff and taking the plunge down a deep ravine. i get a feeling of being nauseous and anxious at the same time. it really terrifies the hell out of me! some people whom i know can be so imposing, even though they ask in the nicest manner possible. i hope that they 'back off', even a few feet away, once in a while. there's such a thing as "personal space".