Re: Grinding his teeth--eek!
My LO did this for a while. It drove me nuts. Then I guess I just forgot about it and she must have stopped, because I don't remember it happening in a while. It probably started around the same time as yours, maybe a few months earlier. I know when my sister heard it, she had a flashback to my nephew doing it, and she said she hadn't thought about it in years. The sound brought the memories flooding back! I think it's okay, probably just them getting used to their new teeth. But wouldn't hurt to mention to the pediatrician if it goes on for many months.
Mom to my sweet little "Pooper," born 10/12/11, and "Baby Brother," born 6/23/2014, and married to heavy metal husband. Working more than full-time, making healthy vegetarian meals for family, and trying to keep up with exercise routine.