My mother inlaw gave me some flea medican for my dog and now she is acting strange. She is a 4lb Maltise who is 3 years old. The flea medican said it was for dogs 33lb and below. My mother inlaw said she puts it on her male Maltise (who weighs 11 lbs) and it works great. The next day my dog started acting funny - example- she cries alot for no reason, she does not greet me at the door when I or anyone gets home. Before she would be crazy with excitment to see us come home. She acts scared and won't eat.. I gave her a bath the day she started acting strange thinking it was from the flea medican but she is still acting strange. She does not even beg for food when we are eating which is a big deal with her. I need some advice!!