I wormed my 6 chickens with Wazine on Thursday in a community water bucket. My RI Red started to get sick 2 days later. Yesterday she was slow to move and not looking well, but eating out in the yard. I thought it was from the wormer, so gave it a day to see if she got better. Today she is not moving at all, and sitting pretty much all the time. Is this common if there was a build up of worms? I never actually saw worms, but all but 2 of them have had runny stool and poopy butts for the last 2 weeks. How can I help her? Could the poopy butts be something else?