What would be the most likely cause of nausea & frequent acidic yellowish stools (type 6 on bristol chart) x 10 days, and the best home intervention.

"Cure" for diarrhea: First define the problem (what's the frequency of stool?), circumstances under which diarrhea developed (malabsorption, pancreatic maldigestion, food intolerances, stressful times, exposure to ill individuals, food poisoning, ischemic gut, inflammatory colitis, etc.), severity (stool volume, dehydration, blood, night-time awakening, weight loss), recurrent? The "cure" depends on diagnosis.