muscle twitch/palm-wrist

Not sure if this is how I should reply to a dr's response so here goes: 58-good health/runner/lifter/etc-anxiety past 3 yrs due to health problem of wife's and several personal issues:SI joint dislocation, wrist tendonitis, others that resolved.

1 mo ago, Physical therapist was manipulating left scafoid on wrist (Hand dr had diagnosed tendinitis) and noticed thumb twitch almost from wrist to base of thumb.  I had not noticed it before. Twitch has become more and more persistent and has kept me awake. No pain, no loss of strength or dexterity--gives a tremor when holding something loosely like a newspaper.  In previous 8-12 mos--have done AND AM STILL DOING LOT of wrist strengthening/FINGER extensor exercises, switched to left hand mouse because right wrist was more sore.   REPLY FROM: Abhijeet Deshmukh, MD  was....

You should get a neurologist's opinion about nerve conduction study. Since you do not have any weakness, but get tremors while holding objects, I HAVE NO TREMOR HOLDING SOMETHING LIKE A COFFEE CUP AND I MY HAND DOESN'T SHAKE WHEN HELD OUT FLAT IN FRONT OF ME EXCEPT FOR THE MUSCLE TWITCHING  the nerve supplying the muscles of the thumb is getting irritated somewhere around the wrist. Could happen in inflammatory conditions, like the tendinitis.

This does not look like benign fasciculation syndrome. Do you have fasciculation at any other site ? I HAVE NO FASCICULATION AT OTHER SITES. DOES THIS CHANGE YOUR RESPONSE??