Our puppy had a stomach problem 3 weeks ago. The vet gave us a supply of w/d food for him and told us to put him on it for atleast 7 days. We did and now he's back on his prior food completely. Well last night it started all over again. He needed to be taken out every 2 1/2 hours and had diarehha each time (as he did two weeks ago for the full week). He seems happy, playful, and hungry and the diarehha is the only thing abnormal. He has been on Nutro since he started eating food at the breeders and we continued with that food here. The vet mentioned that it may be colitis and I was wondering if anyone has dealt with before or can give me anymore information on it. Is it a lifelong problem or will it go away? He will be seeing the vet tomorrow. Thanks for any insight or information you may have. I feel so badly for the little guy! Plus, its exhausting for my me and my husband!