I am 83 years old. I am under treatment (preventive medication) for some years now. Yesterday was a normal day with no tensions or reasons for high BP if at all. Having woken up after a one hour snooze in the afternoon, when i tied to get out of bed, my head started reeling. I just could not stand on my feet. I sat for five minutes and tried to stand up. My head still reeled. I held on to the wall and walked. Reeling disappeared. After dinner at 8 p.m, my head started reeling, felt like vomitting and finally vomited all that I had in stomach. Lay down and slept peacefully. This morning there has thus far been no symptom odf vomiting. I do not have a history of heart related problems. Only three months back, I had my self complete executive medical check up . There was nothing abnormal. Why did I get that attack last night and what should I do about it?