I just noticed my 6+yo female pekin duck,whos been limping for some time, NOW has swollen warm joints on one leg. is there anyplace online that might have suggestions? $ HUGE issue and do not want to destroy her as she is eating/drinking/pooping good. I fear bringing her in the house to float her will be uncomfortable(its getting cooler out-30's at night) and dobn't know if cool water floats would help. ?.