My daughter has pustules on her tonsils and test came back for strep, she was also tested for mono, but that test was inconclusive. She is complaining of feeling light headed and just fainted but was out for only a few seconds. Is this something common with mono? She has been to a walk in clinic on Friday, and to emergency department on Saturday and Sunday but the doctors did not seem concerned. She also has anxiety and wondering if the anxiety can be triggered by the virus even though she is not feeling symptoms from the anxiety