<s>[INST] I am suffering with a tremor on my left hand side this started in my leg and has progressed up the body and into my head over the last 18 months i also feel week worse at night time when i am still.  I also get heart palputations and sometimes my heart beats much harder and feels as if it is out of rythm. I am 53 years old. [/INST] Hi, Welcome to Chat Doctor .com I am Chat Doctor. Mariano Into Bruno Mascaras. I have gone through your query with diligence and would like you to know that I am here to help you. Tremors on One side of the body can be due to 1. Cerebellar Problems 2. Basal ganglia Problems To Proceed Further you need to undergo 1. Clinical Examination 2. Radiological Evaluation Please consult a Neurosurgeon at the earliest Hope you found the answer helpful. If you need any clarification / have doubts / have additional questions / have follow-up questions, then please do not hesitate in asking again. I will be happy to answer your questions. Best Wishes for Speedy Recovery Let me know if I can assist you further. Take care.-loops 1 : After all your doubts have been cleared, kindly (a) Close this Question (b) Rate my Replies and (c) Give your Feedback. PS 2 : In the future, for continuity of care, I encourage you to contact me directly in Chat Doctor at http://bit.ly/ask </s>