J.S.
HI K.,
It sounds like she may be having some sensory stimulation issues, often accompanied by oral stimulation desires. Usually, the oral piece can be solved very quickly because it is actualy a symptom of mineral difenciecy. Sounds crazy, but go to the health store and get a liquid mult-mineral and give her a small dose AM, PM for awhile. It should go away quickly.
If she is having other sensory type behaviors, you may want to consider getting her to a OT (www.floortimeatlanta.com is the best). Also, many of these will go away when you get rid of foods that is causing her immune to respond (the top three offenders are mik, wheat, soy). Best of luck, j