I am still unsure what sort of tremors I have, but by the description here, I don't believe I fall into that category. My dad had, I believe, 'essential' tremor in his left hand. Never did find a cause.
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https://www.ninds.nih.gov/health-information/disorders/functional-neurologic-disorder?search-term=functional%20tremors
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The worst about mine is I tap the trackpad unintentionally, and often without even knowing.
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Mine are also not 'vibration' so much as jerks.
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Hope WE can find relief!