I keep getting colds and sinusitis, can it be that I have a low immune system?

I keep getting colds and sinusitis, this has been going on for many years. Can it be that I have a low immune system? What test should I do to find out?

Female
Age: 45
Medications: NA

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Dr. Javez Ernesto
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Dr. Javez Ernesto

You may be suffering from a recurrent infection instead such as a chronic sinus infection which requires treatment. However as far as immunodeficiency disorders are concerned, the tests should include CBC – Immunoglobulin levels in the blood, White blood cell count, Protein electrophoresis (blood or urine), T (thymus derived) lymphocyte count. Ig, IGM and HIV test.