My 9 weeks old Shih tzu has been having diarrhea for 2 days. He eats 2 times a day. I feed him 1/4 a cup a day. He poops like 6 times a day is this normal and like 5/6 is diarrhea and the 1/6 is regular. Do you think I could just use Petmo Bismol but when I read an article it said that Petmo Bismol is no longer safe for dogs and pups. What should I do?