<s>[INST] I notice that every morning I am feeling lightheaded....want to go back to bed...but as soon as I have a bowel movement, I am fine. Sometime the BMW doesn t happen til late in the day....like today , for instance. What is going on? I understand that a neurologist is then doc who can help me. What canj he do to help me? What would be the diagnosis? [/INST] Hi, common causes for morning dizziness are - Inadequate blood oxygen levels Low or high blood glucose levels Low blood pressure or other circulatory disturbances Inner ear disturbancesSingle episode is not a matter of concern, but repeated episodes are matter of concern specially when it is severe enough to cause in coordination and balance problem. I would advise you to check blood sugar and BP in morning and ENT checkup. Thanks </s>