Medical Specialty >> Neurology

Doctors Lounge - Neurology Answers

Back to Neurology Answers List

If you think you may have a medical emergency, call your doctor or 911 immediately. Doctors Lounge ( does not recommend or endorse any specific tests, physicians, products, procedures, opinions, or other information that may be mentioned on the Site.

DISCLAIMER: The information provided on is designed to support, not replace, the relationship that exists between a patient/site visitor and his/her physician. Please read our 'Terms and Conditions of Use' carefully before using this site.

Date of last update: 10/04/2017.

Forum Name: Neurology Topics

Question: Sudden Pressure Drop in Head/Uncontrollable Shaking in Left

 GlennA1962 - Tue Sep 16, 2008 9:55 pm

I am a 46 year old male. Over the past 3 days I have had several instances where I feel as if there is a sudden change in the pressure in my head. No pain, just a sudden feeling of a drop in pressure and slight light-headedness.

Yesterday while watching a movie, my left arm and hand began to shake uncontrollably. No pain while this happened. It started out quite mildly but then became rather intense. I was surprised and found myself "willing" it to stop to no affect.

If I pressed my index finger and thumb together, the shaking became quite severe. After about 20 minutes, it subsided.

Today my arm feels fatigued as if recovering from an intense work-out.

This has never happened to me before. I am from Canada and currently live in China, so finding quality medical care is possible here, but usually expensive.

I would like to know if I should just wait to see if anything like this happens again, or if I should see someone.

If I should see someone, is there a general direction I can point them in? Since it does seem to help over here to know a bit about what you are looking for.

Thank you for your help with this.
 John Kenyon, CNA - Thu Dec 18, 2008 10:26 pm

User avatar Hello -

While reading your post my first thought was intrasinus pressure changes due to a blockage, but with the definitely neurologic symptoms that followed the onset of the head pressure drop sensation, and especially the intention tremor caused by your provocative test (pressing thumb and forefinger together), you will need to be evaluated by a neurologist. There are a number of possible causes for this, the most prominent being multiple sclerosis (MS), although that is only one of the possibilities. It's one you'll want to rule out (or in) so a management plan can be laid out early on.

Your best direction pointing would be to describe the onset exactly as you've done here in your post. This should get the ball rolling in the right direction.

Best of luck to you. Please follow up with us as needed.

| Check a doctor's response to similar questions

Are you a Doctor, Pharmacist, PA or a Nurse?

Join the Doctors Lounge online medical community

  • Editorial activities: Publish, peer review, edit online articles.

  • Ask a Doctor Teams: Respond to patient questions and discuss challenging presentations with other members.

Doctors Lounge Membership Application

Tools & Services: Follow DoctorsLounge on Twitter Follow us on Twitter | RSS News | Newsletter | Contact us