Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice.
I just wanted to know if the RBS done was on fasting or postprandial, i.e. with in few hours after taking meal. If it was after meal, then this looks to be normal and I don't think getting
HbA1c would add a lot. However, the persistent symptoms should not be ignored and other reasons for such symptoms should be explored. I personally would like to see an ENT surgeon to know if it's
chronic sinusitis or allergic condition or any other. If everything is fine, then an internal specialist would need to assess her in detail. Other option would be if a
neurologist sees her, for her headache and
dizziness, it will well annd good. If still in doubt you can repeat the sugar on fasting, i.e. 7 hours after eating and postprandial, i.e. 2 hours after a meal. If the former reading is over 100 or the later is over 160, we can think about doing HbA1c. If the reading you had is on fasting is high, then getting HbA1c is probably necessary.
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