Feeling light headed all the time and tremors when trying to sleep making my heart racing and waking up for no reason. Hence it takes time to settle before I sleep. It is causing me stomach discomfort and frequent burping and burning sensation. Not diabetic, mri brain, ECG, echo, endoscopy, vitb12, vitD,
thyroid all normal. Active and muscular. For the last few days symptoms are more. Feeling terrible inside. Don't know which doctor to see. Please help.