Hello all, this is my first post on here because I am feeling really helpless. Last march I went to the er because I was feeling really dizzy--i was almost ready to faint. My blood pressure was very high too,at 170/100. I got the required exams, ecg, holter monitor for two days, an mri...All of these tests came back normal. This happens to me rather irregularly, sometimes I feel dizzy twice or three times a week, and other times I feel fine for a month and a half and then the symptoms return again. Today was another example of this happening, as I had been feeling fine for the past two weeks until all of a sudden this morning I felt unwell, and my bp was high again. Any suggestions as to what I can do? Thanks so much.