hi, i have been suffering with Nausea for 5 months. It comes really bad for a week then goes away for 3 weeks then back again. I have had an endoscopy & ultra sound which didnt show anything apart from excess acid. I am due to have a brain mri this weekend. I have been fine for 4 weeks and now its back. All I have done different is drink 1 glass of lemonade, Please can you help me as this is emotionally wearing me down and it's ruining my social life as I darent go out or drink incase I get ill again!