Puppies do have pain with teething just like human infants do. Also like human infants, they can get upset stomachs and such. The worst teeth are the canine fangs and the big carnaissal molars on each side top and bottom. You likely won't notice the small front incisors as usually the adult teeth just push them out with no problem. She should be starting to grow in the canine teeth any day now.
lf she really seems to be in pain, you can soak a washcloth in chicken or beef boullion, twist it, and freeze it. Chewing on that will ease the discomfort.
Only give her the washcloth under DIRECT supervision and take it away once it's thawed. l used to keep a couple in the freezer for teething puppies. That way they could always have a frozen one ready to go when needed.