Hi if someone could please help. The duck I rescued female, Honey,who is now 8 months old started jerking her head to the left and closing the right eye, sort of like nerve damage or a twitch. The eye looks fine and can't see anything physically wrong. Her neck on the right looks a little swollen maybe something stuck? She is pooping just fine normal, really she is eating and drinking too! Not sure what could be wrong I thought maybe a bad spider or plant? If anyone knows please help, thanks!