My five month old Pugg is vomitting mucus, mucus in bowel, lost weight, non-active and looks very very sick. I spotted lots of long, straight, white worms in his last bowel movement so we wormed him for the 3rd time today. I am very worried about him because he is usually very happy, playful and hyper. Please help me. We forgot and failed to get his 2nd set of shots at 3months old and wonder if that has something to do with it. We are taking him next week to get that done. Are his symptons signs of worms?