I have a 5-6 week old chihuahua/jack russell terrior mix puppy who just finished 3erd day of dewormer. But now since last night she has been having a hard time standing up.. almost like she is to weak to stand But is fine everywhere else she is eating and drinking and even playing with us but not standing or walking around very well. I do know that one of the other pups had both his legs broke after all the pups being mulled by a larger dog (which is how we got her) could this problem be a side effect from the dewormer or because she was infested so badly and she learned how to walk with that belly and now that its smaller she is having problems.. please help.. I don't have a lot of money for the vet BUT will if it means her be better we have had er a week now and totally in love with her