Hi, I myself have been experiencing left hemibody tingling/ numbness.(left foot, leg, arm, face (including left side of lips and tongue, which screws my sense of taste), nasty headaches, dizziness. It has been steadily progressing since July, started in foot, by Aug. was affecting arm, Mid-Oct. hit face... Nov. started having dizzy spells, headache getting progressively worse with severe pressure in back of head, and behind eyes. I have seen Neuro, had MRI, had lots of blood sucked, as well as LP. MRI showed lesion in left frontal white matter, but that "can't be causing symptoms". It also showed area of increased signal on brainstem, but Neuro blew it off as "artifact". I am scheduled for repeat MRI next week(3 months apart) Neuro said "could be lots of things, but sometimes you never get an answer."
I did some research and discovered "Hemibody Sensory Syndrome"...a condition that often has "poor diagnostic yeild".....(look it up)
I've come to the conclusion that there are so many variables to neurologic sensory symptoms that it may be easier to say "I dont know" than to continue with tests.
If symptoms had come on suddenly I would swear it was a stroke, but it has just been gradual.
If anyone else can relate please respond with your thoughts, your Dr.s, or whomever!