I started having a little bit of upset tummy a few days ago but since Wednesday I have been having diarrhoea every half an hour. Now passing just yellow water. I’m still peeing ok as have been sipping diaroltye but I’m feeling very shaken now. Will call GP later. I’m terrified I will have to go into hospital. What will GP suggest? I’m taking sertraline so don’t think I can take Imodium?