My almost 10 month old daughter has not been wanting to eat anything for last week. But still nursing. No tummy ache/ yes teething. Worry?

Not to worry! If she is nursing, urinating , has no fever and active it is most likely normal. If she just nurses she won't be hungry to eat solids, offer solids first and then nurse let someone else in the family try to feed her. If she is fussy and acting like teething try pain relievers like tylenol (acetaminophen).
See pediatrician. If the child ate well, you may want to try a softer food if they are still breast feeding. See pediatrician if that doesnot get her to eat.