I have a 13 week old Staffy puppy who was sick yesterday. It has only been the once but the puppy's dad (who lives with a friend elsewhere) has been sick several times in the last few days. I don't let him out long literally a few minutes but could it be the chill that is making them both sick? (The snow has been slightly worse where the Dad is and he has been sick more. ) Any help would be appreciated. Thanks.