Hi, Thanks for your query. From your description of the problem, We would require more information- like for example- if you have nausea/ vomiting, any visual disturbance, diurnal variation, medicine history, allergies, family history etc to give you an accurate probable diagnosis for your condition; Some investigations are also required. You can choose to see a specialist in Internal Medicine or Neurology. You can also log onto our website and chat with one of our doctors between 9a.m. and 9p.m. Indian Standard Time on any day to discuss better about your problem what causes it and the possible treatments.