I’m a new duck owner. I have Four Peking ducks and their adorable! Miss Pauline has been having a problem for two days now, no others are displaying her problems but I have separated her just in case? Her eyes are clear, nose vents nice and clear, weight gain great. New feathers coming in. She just looses her balance and one on her back she just waits for me to flip her over? Once flipped she wobbles unsteady like she’s drunk? Any help would be appreciated by this newbie and miss pauline