hyperaesthesia

from The Collaborative International Dictionary of English v.0.48

Hyperaesthesia \Hy`per*[ae]s*the"si*a\, n. [NL., fr. Gr. "ype`r
   over + ? sense, perception.] (Med. & Physiol.)
   A state of exalted or morbidly increased sensibility of the
   body, or of a part of it. -- {Hy`per*[ae]s*thet"ic}, a.
   [1913 Webster]