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In your age these problems may occur due to multiple reasons like:
and anxiety: need evaluation.
-Substance use: stop use if present
-Vitamin deficiency: take healthy diet
imbalance like hyperthyroidism
-Familial movement disorder: if family history +.
For better management all these problems need to rule out from detail problem related information and examination.
I hope this information has been both informative and helpful for you.
Wish you Good Health.
Dr. Ashish Mittal