What Causes Persistent Night Tremors?
Fever may be a possible explanation.
Detailed Answer:
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I have read your question and understand your concerns.
Night tremors is a term used to describe movement disorders that occur when you are sleeping or about to sleep.
Analgesic tablets have the ability to lower the high temperature that may cause jerking of extremities too, so, chills due to fever should be considered as a most possible condition.
These movements can show in forms of spasms, involuntary jerks, etc.
Night tremors are thought to be caused by overactivity of certain brain areas.
Conditions that may be related include metabolic disorders, hypoxemia, stroke, etc.
Hepatitis C may cause metabolism disorders and may affect brain function too, so, it should be considered as a possibility in your case, since you experienced fever too.
Getting blood tests about liver and kidneys function, electrolytes, etc. is necessary to understand better your condition and to exclude these possibilities.
Monitoring regularly your body temperature ( every 4 hours for example ) is necessary too.
Guillain-Barré syndrome may cause muscles weakness and sensory disturbances, but is not linked to night tremors.
Please discuss with your Doctor about these issues.
Hope you found the answer helpful.
Let me know if I can assist you further.
Kind regards.