Your symptoms and blood pressure readings are suggestive of postural hypotension. It is a condition in which one experiences a upper (systolic) blood pressure drop of 20 mm Hg or more, or a lower (diastolic) blood pressure drop of 10 mm Hg or more, with or without an increase in heart or pulse rate.
In normal people the upper blood pressure falls by less than 10 and the lower one rises as a matter of fact by 2-3 reading. Since you have a significant fall, following would be advised;
1) Lifestyle modifications, such as avoiding sudden postural changes
2) Sitting on the edge of the bed for 5 minutes before standing,
3) Calf muscle exercises,
4) Drinking 2 liters of fluids per day,
5) Avoiding hot environments,
6) Raising the head of the bed to 15-20 degrees,
7) Elastic compression stockings
8) Medications, can be the culprit.
9) Medical treatment; fludrocortisone, midodrine, erythropoietin, and pyridostigmine. These are only needed if the symptoms are significant and persistent
Following investigations may be advised;
a) blood urea
b) serum creatinine
c) glucose tolerance test
e) complete blood count (CBC),
f) electrocardiography (done already).
h) magnetic resonance imaging of the head to rule out Multiple System Atrophy.
Please feel free for your follow up questions.
I would be happy to assist you further, if you need any more information.
My pulse rate did change a bit as I sat/squatted tostanding as follows- 100 to 119, 77 to105, 78 to 118
Would this make a difference?
Is this normal to just happen out of the blue?