It may be Parkinson disease.
Need to consult.
Start with Dashamularishta+Ashwagandharisht
4tsf thrice a day.
Need panchakarma also.
I have accupressure points also for your problem it gives you help.
Next Steps
Take milk specially cow milk,cow ghee, seafood and cod
liver oil capsule.
Asan and pranayama.
Health Tips
Avoid excessive spicy salty and tea alcohol tobacco and smoking