My 3 year old Buff Orpington is gasping, but only when sitting or when I hold her to give medicine. And she also has diarrhea. I've been giving her Tylan 50 orally for 5 days now. (I just can't give a shot). Her color is a little better, but I wonder if there is more I can do. Not sure if it's just respiratory and/or worms or mites. The rest of the flock (4 others) are fine. She is acting 'normal'. Eating and drinking. Can I give her something for the diarrhea? Thanks for any ideas.