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Involuntary Muscle Movement
Over the past few weeks have started to notice small unintentional movements in various parts of my body: legs, hands, fingers, feet, arms.  This isn't muscle twitching or spasms, rather my extremities move very slightly often after performing some kind of function with them.  For example, I move my arm and after the intended movement it will jerk/contract very slightly in some direction very quickly and stop -- almost as if the muscles in my arm are contracting very quickly and releasing. It kind of seems like a small electrical shock is sent to that part of the body and it just...reacts without my say so.  

This isn't adversely affecting my life, but I am becoming increasingly aware of it.  Just now as I type my thumb/hand noticably jerked.  Often using a part of my body can bring on this additional hyper movement.

I have become somewhat concerned about this as I never noticed it before.  I'm not sure if its worsening or if I'm just noticing it more. I plan to see a doctor next month for a physical, but want to know if I should see a neurologist before that as I fear it could be a the onset of something serious.

I recently had a Hepatitis-A vaccination about 2 weeks ago. I take Wellbutrin (have for 5 years) and I take Proscar 1.25 mg daily for hair loss. I've cut down on caffeine intake as well, but these don't strike me as caffeine jitters.  
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i forgot to mention I've been under a great deal of stress and anxiety over a romantic situation I am in. obsessive circular thinking over this situation I am in.
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Hi iluvninjas. I know this is a very old post. Are you still following this thread. I'd really like to know how are you doing now.

I also experienced almost the same thing during the last couple of weeks. My thumb and pointing finger jerked occasionally. Just once everytime. But like you, I become more and more aware of this.I think this is because I have been working with computer/mouse so long that I often work with my wrist pressed against the table.
Just like you I also experience involuntary movements in various body muscles: hands, legs, arms, calves, back, stomach. Since these muscle twitches and finger jittering appear at the same, I think both your symptoms and mine are of the same cause.
Please respond if you have found the correct treatment for this problem. I'd be really grateful.
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I've had the exact symptoms.  It started just over four years ago.  
My general practitioner at the time ordered a MRI of my brain.  
I had a scan with out contrast that showed no lesions to suggest Multiple Sclerosis.  However, after these years I've had a recurrence of the involuntary movements.  Mostly effects my head and neck. Arms, thumb, leg.  Just slight movements. Pretty concerning actually.  As I have read that MS can progress undetected for years.  I do run quite a bit, and was hoping that it was just electrolyte imbalances or something related.  
So, I'd like to hear what the two of you have found out thus far.
thanks.
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I see there were no replies to your messages.  How are you now? was it due to electrolyte imbalances? or other?
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