About two weeks ago, my new Silkie (now about 6 wks old) had an occasional sneeze, or attempt to clear its nose, and a slight, clear nasal d/c (no smell). Vet said it was likely the stress of moving to a new home, etc. Completed a 7-day course of Tetracycline; but it seemed to clear up after 3-4 days. The other two (EE & BR, both now about 10 wks old) never showed any signs of illness. This past Friday evening, the Silkie had a little clear run at its right nostril, again it had no smell. I started tetracycline to be safe. That was the only time I saw it run. Its nostrils seem to be somewhat crusted over since then. There's been no sneezing from anyone, and no signs of illness from the other two. The Silkie's energy seems to be normal, and it has been eating, drinking, pooping, and foraging normally. It doesn't seem to affect it at all, but I am concerned. I'll call my vet on Monday, but I'd like to know, what does this sound like?