My 6 month Welsh Harlequn is sick. This morning I went to let them out, and she stayed in the pen, laying under the ramp. She eventually got up and moved slowly out to the rest of the ducks. Her back end looks puffy, tail is down. We have also gotten some very small eggs (which I have deduced are from the WH, we only have 2) sporadically, and found a couple rubbery ones in the pen and pool. They have Oyster shell out and get calcium via crushed egg shells. Do I take her to a vet or try home remedies first? I plan to try the KY jelly/warm bath today. Of course were supposed to leave on vacation Wednesday. I want sure if it's an emergency or I should try at home first.