Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. We will try to help you in best way possible. First of all it s sad to know what you had been going through lately. Based on the history you have shared, the neurological, cardiac and metabolic causes need to be ruled out but Initially blood pressure monitoring as well pulse and blood sugars may be reviewed followed by EKG and holter if needed. If these are normal, serum electrolytes and thyroid functions may be needed along with a detailed neurological examination by a neurologist. Possibility of ear related conditions like benign positional vertigo should be ruled out. Hope I have answered your query. Let me know if I can assist you further.