The warm, dry nose thing supposedly meaning a sick dog is not necessarily a true determination like so many believe. I would think eating dirt itself could cause a dry nose, beings that her nose was being shoved into dirt. Try taking her temp to see if it is normal. (About 101) If you do not know how to do this call your vet and ask them to explain the procedure to you. Maybe she just feels bad from having ate that dirt. Is she eating normal, drinking normal, stools normal, urinating normal, playing normal? Those are the general questions you want to ask yourself when determining if your dog may be ill.