Is our 2 1/2 month old teething?!?!?!?!

So last night we fed Caidyn, changed her diaper, and were watching the Rockefeller Christmas Tree Lighting. The makings for a perfect December evening. 

Except Caidyn was drooling up a storm and would occasionaly go from this face

to her happiest face

and back and forth. I posted a little GIF type video on my Google+ wall about it!  

What is going on?!?! We felt around and felt a little bump on her upper gums a little to the left of center... but could she really be teething??!?!?!?!!!!! I'm breastfeeding and OH SO NOT ready for that! Eek!