I Have A Candida Infection Of The Throat For Which

I have a candida infection of the throat for which my doctor has prescribed nystatin. I have been taking for two weeks but the symptoms have taken a turn for the worse. I have started to get panic attacks loss of appetite nausea. would you say that these are related to the condition. I have to cut my holiday short and fly back to UK tomorrow as I can't stand how I'll this is making me feel. do I need to get this checked more urgently?