Sick duck

[patta]

I have three ducks 2 indian runner and one male mallard. One of the females has been limping for almost a month, her leg looks normal,i gave her one aspirin for like three days. at first she was eating normal but now she looks sad and she wont eat or drink. She also seems dizzy and just had her head down and her eyes are watery. I hope you can help me. Should i take her to the vet??