I have an Oberhasli doe that kidded on June 15, we started taking the kids off of her at night around July 15, and now all of the sudden when I went out to milk her yesterday I noticed several small nodules in her udders. I did the CMT test and both udders had no particles (a negative?) she doesn't have a tempeture and seems a little reluctant but will still allow us to milk her. Also she still has her full appetite. Is this mastitis?