Thank you for your question.
I am Dr Saha, I shall try my best to help you.
There can be a few possibilities.
Fall of blood pressure can cause dizzy feeling on standing.
Dehydration can be a factor.
There can be low level of glucose.
Heart conditions like low ejection, heart attacks, rhythm abnormalities may lead to the attacks of dizziness or faintness.
It may also occur from anxiety or stress or neurological disorders like stroke/ TIA.
Anemia or electrolyte changes can also be factors.
In some cases there can be feeling of vertigo from benign paroxysmal positional vertigo or labyrinthitis or inner ear problems.
I feel you should get an examination by doctor.
Depending on the physical examination by doctor, you can need a few tests such as blood work, scan, EKG etc.
Pl take plenty of fluid to keep good hydration & remain at rest.
I hope this information helps.
If there’s anything else I can do, please let me know.
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