Hi doctor. Recently, when I defecate, the stools are not formed, sometimes it is normal, sometimes it is liquid like water, but I do not have abdominal pain, I have stomach Helicobacter pylori. Can you diagnose and advise me what to do?

Recently I have been feeling nauseous and belching along with hard and loose stools. Or farting and stomach alcohol. Occasional lower abdominal pain spreading to right abdomen, waist and back (right side).