Anyone keep having stomach issue

I just have stomach flu keep having diarrhoea and only recover after 12days. Stool was getting into shape as time pass. But still soft. After 5 days I have stomach issue again. Feel bloated and again softer stools and every time after eating will feel like going to shit. Anyone experience same as me? Is this normal? My stomach is bloated n feeling reflux with sour taste in mouth. 18weeks now. Really don't know what to do.