<s>[INST] ive been getting random "jolts" in the left side of my neck/ear and also in my chest around my heart. This has been going on for over a year and happens about 5 times a month. It jerks my whole head and I seem to llose control of my head very briefly.What could this be? [/INST] Hello! Thank you for asking on Chat Doctor! Your symptoms could be related to myoclonus. For this reason, I would recommend consulting with a neurologist and performing an EEG. Other tests to consider would be: complete blood count for anemia, thyroid hormone levels for thyroid dysfunction, blood electrolytes for electrolyte imbalance, calcium plasma levels and vitamin D plasma levels for possible deficiency. In the meantime, I would recommend treatment with clonazepam. You should discuss with your doctor on the above issues. Hope to have been helpful! Best wishes,  </s>