Were any tests done when you went to your doctor? Do you have any specific symptoms?
Well - the dizziness is just a sign of sudden change of position leading to change in blood pressure, change in blood supply to the brain - not something you should worry about.
Since your ekg's have been fine - i assure you that the variation in systolic and diatolic is not significant and you need to relax and not get anxious about it.
If you are still stressed - you could talk to your doctor about getting an ECHO done - to know the function of the heart - it is similar to an ultrasound of the heart and also getting a blood test done to rule out anemia - which can have wide pulse pressure.
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What was the exact values and what was the hemoglobin?
The values are alright nad should be not a cause of concern.