Amputee question

[Red Dwarf]

What exactly is it that causes amputees to feel pain and/or sickness during pressure changes or shifts in temperature? I've done a minor amount of research, and haven't really found anything that answers my question.

[Wanderfound]

First I've heard of pressure related pain/nausea in amputees. At a guess, I'd suspect that it's related to circulatory impairments causing blood pressure spikes.

Have you seen Ramachandran's work on phantom limb syndrome? Not quite the same issue, but possibly related.

[LLlAMnYP]

Many people with hypertonia are susceptible to meteorological changes. Perhaps (as stated above) the absence of a limb amplifies such problems?