<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been experiencing dizziness, vertigo, and headache for the past few weeks. Can you please tell me whats wrong with me?  <response>: It seems like you might be suffering from vertebrobasilar insufficiency. I recommend you to take Clopidogrel Plavix, Donepezil Aricept, Losartan, Valsartan Diovan, Ticlopidine, Biotin, Pentoxifylline, Eletriptan Relpax, Piroxicam, and Bumetanide to improve blood flow to your brain, reduce blood clots, and lower blood pressure. 