Messy Diapers Too Many to Count

So I know this is pretty gross and why would I post on this subject you may ask. Well here it is, Noah has had diarrhea for the past 2 days. GROSS!!!!!!!!!! He doesn't have a fever, not vomiting and no other unusual symptoms. Of course I'm stressed out, my baby obviously has something wrong with him, right? He is teething, so I guess that could be it. We're feeding him items from the BRAT Diet- Banana, Rice, Apple Sauce and Toast. Also yogurt for those lovely cultures and nothing is working. Of course I'm giving him plenty of water and milk so he doesn't become dehydrated. What is a mother supposed to do? I called the doctor in this lovely town we call home which pains me to do so. Lets just say after a Urgent Care experience here in Ridgecrap as I like to call it I have little faith in their medical abilities. But I'm sure not going to drive all the way to San Jose, just not logical. So if he wakes up with it in the morning, off to the doctors we go. I have a pediatrician here that I see in emergencies but it's just not the same as his doctor in San Jose. So if you have any advice please feel free to post something, I'm at the end of my rope. You mothers will understand when your child is sick it kills you. Luckily Noah is a happy camper through all of this. Keep your fingers crossed that this clears up and is nothing serious.