Brief Answer:
Unstable blood pressure to consider.

Detailed Answer:
Hello and welcome to "Ask a Doctor " service.

I have read your query and here is my advice.

I think too that changes in blood pressure ( especially unstable or low blood pressure ) may cause symptoms like yours.

So, first thing to consider in your case is to monitor your blood pressure there to four times a day for few days.

Orthostatic hypotension also is a possibility and, for this, is necessary to measure your blood pressure in lying, sitting and standing position and recording the results.

Discuss with your Doctor for these issues.

Hope you found the answer helpful.

Let me know if I can assist you further.

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