I had a Nissen Fundoplication 4 years ago, whenever I get a stomach bug I am ill for 1 week, At the moment I have been poorly for 5 days. I had been on holiday to Lanzarote and was back for 36 hours when I started with intense nauseau, diarrhoea, fever , palpitations and initially a dull ache in my right side. For the first 24 hours I thought I may have had appendicitis although the ache in the right side eased off and did not become any worse, I felt too ill to get out of bed. Since then I feel weak, nauseaus, headache , no appetite , when I do eat I feel sick again, I have no energy, I am now tolerating fluids but still feel really ill and I need to get better to return to work, help!