Hello
I had gone through your question diligently and I will try to help you out in best possible way
Pain in abdomen followed by loose stools can be caused by
gastroenteritis, colitis or worm infestation
I would like further information to help you better like
Your age, sex and relevant medical history like diabetes or liver disease
frequency of stools or whether it is associated with bleeding?
White spots on stroll could be mucus
In my opinion you should consult your doctor for examination and
stool test for ova cyst or parasite
You may require a course of antibiotics like tinidazole or
metronidazole and probiotics
meanwhile try to observe good hygiene
wash your hands with antiseptic soap or solution after using wash room
Have plenty of fluids including ORS to avoid
dehydration and electrolyte imbalances
have lots of fresh fruits and vegetables or dietary fibers
Hope this answers your question
Best wishes