You can just bring pebbles and bubbles to the vet since they are the ones with the symptoms. Tell the vet that Flipper was in the same tank but hasn't shown symptoms yet. Hey may give you medicine for flipper too.
Turtles will usually try to crawl under the darkest tightest places possible as Runnin mentioned. Was the room he was in closed up or is it possible that he got out into the rest of the house?



