Q. My dog is a 3 year old and has a choking cough when getting excited, going from warm house into the cold and when she eats to fast today she had pain
A. I would take her in for a check up. There are a few possible scenarios that could be affecting her like a throat issue and the cold is irritating it. Small dogs that are walked on collars can have partially collapsed trachea or other damage. I always recommend small dogs be walked on a harness to avoid this. There isn't a whole lot that can be done for it other than preventing further damage.