The duck behaving as yours was belongs to my 11yo daughter. She has been giving him round the clock care including staying up at night to help him up when he rolls over. I’ve been helping her so she will sleep some at night. I don’t know how long these type of probs usually take before there is any sign at all of some kind of improvement. This is beginning to look like torture to my daughter and the duck. He acts like she’s a duck pal and has always followed her, climbs on her and lays down and such..she raised him. I don’t want to put him down w/o a fair amount of time. But they are both starting to suffer as he grows more impatient everyday and she more sad.