My dd is 17 wks. She started clamping down on my nipples when she is eating and pulls them. Most of the time, it is when she is about done with that side. She has been sticking a lot of toys in her mouth and drooling a ton. wouldn't surprise me if she is teething. What should I do. I don't want this to happen with teeth. She did it at her last feeding and I sternly said ouch and pulled her off. She started to cry because I scared her. Any suggestions.