My F3 will be 5 months in about a week. Yesterday he started making a grinding noise and was gagging. I figured there was a tooth falling out and sure enough... the left upper premolar (I think) is loose and the upper right was turned inward impinging his pallet. I tried to use my pinky to move it away from his pallet and it fell out. There was a little blood but nothing crazy. I am a little concerned because he has slept allllllll day today. Has not played once. This is not normal for him at all. Im scared he's sick or something... I remember a vet tech saying something about possible infection with teeth issues. His breath is also REALLY stinky. I have read there are many different causes of bad breath but there were some serious things mentioned about liver issues and other serious life threatening things. Am I just being paranoid or does anyone feel I have good reason to be concerned? Any feedback would be greatly appreciated!