
What Causes Lightheadedness And Excessive Sweating While Having UTI?

I would explain as follows:
Detailed Answer:
Hello!
Welcome on HCM!
I carefully passed through your question and would explain that an UTI and dehydration could lead to this clinical scenario, especially when coupled with a higher dose of propranolol (which can lower your blood pressure and heart rate).
Anyway, I agree with your doctor in the fact that 40mg of propranolol i really a low dose and it can not cause this clinical situation.
I would recommend you to closely monitor your blood pressure during these days. Lightheadedness could be related to low blood pressure or orthostatic hypotension.
If the lightheadedness persists, I would recommend reconsulting with your doctor for further tests:
- complete blood count for anemia
- blood electrolytes for possible electrolyte imbalance
- thyroid hormone levels, because a thyroid imbalance can lead to dizziness and lightheadedness
- a cervical column X ray to exclude cervical spondylarthrosis, which can trigger dizziness.
An ENT consult may be necessary, especially if your dizziness is triggered by certain head or body positions.
If your symptoms aggravate when standing up from sitting position, it could indicate possible orthostatic hypotension.
In such case a Head Up tilt test is needed to rule in/out this disorder.
If all the above tests result normal, you may consider anxiety as a possible cause of your symptoms. If this is the case, you should consult with a specialist of this field (psychiatrist) to help you manage better your symptoms.
Hope to have been helpful!
Best wishes,
Dr. Iliri

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