Something happened to the dog.

Hum means it is not life-threatening, but it hurts (it hurts the most within 2-4 days after being hit). If it is really endangered, you will close your eyes and keep silent. Your baby is lucky to have a wet nose, which means that normal practice is wrong. You must not care too much about being hit by a car, and you must not care too much. You can't affect your normal eating habits because you were hit by a car. Gastrointestinal diseases are even more painful for pets. You should also go out for a walk less often (but you should exercise). You should add some calming foods, such as nourishing blood and moistening skin, to the original diet, or you can give some. Most dogs are scared and miserable when they are hit. It'll be all right in a minute. In the future, you should walk your dog in parks and other places to avoid street intersections. After all, you are not always so lucky.

As for the problem of urinating, there are two possibilities. One is that you are afraid that you will have to wait for a while without peeing. After all, this is a physiological reflex. If you can't stand it, you will naturally pee. People are frightened, hunger and drowsiness disappear within a certain period of time, and another problem is to reflect the urinary nerve. . . But the chances are very low. Let's take a look first)

Maybe it has something to do with fear. There should be no problem. The doctors are all fine, so it's okay.