While in Hong Kong in March, I had a quick onset of nausea and fever followed by violent vomiting. A doctor was called to the hotel and gave me common mess for nausea and pain and fever. I assumed I had food poisoning except that I never had diarrhoea. Instead I was constipated and exhausted with residual headache and nausea for a couple of weeks after. Now it s June and I m still dealing with the constipation, and I ve recently had flu-like symptoms with a rash - something I haven t experienced before. I am normally very active and fit, but since March have been unable to resume regular activity due to fatigue. I m worried I may have some more serious illness (that was wrongly assumed to be food poisoning) that is continuing untreated. Suggestions?