My father is experiencing internal tremor.What can be it?
debarati d
For the last two years my father is experiencing internal tremor with a chill sensation.It increases in the cold weather or if he is in a air conditioned room.The tremor or the chill sensation disappears when he uses a hot water bag or comes out of the A.C room.No external tremor takes place or any problem with motor reflexes. What can be it?Parkinson?

Sounds like a neurological problem, he should visit a neurologist
A bodyquake!