My 15 month old has started doing something that looks likes he has a chill or the shivers several times a day. His whole upper body just twitches a little bit; people have even made comments like "oh he has the chills". He is teething, with some drooling and tooth pain, but aside from that his health is fine. I have checked his temp several times a day and he never has a temp. We have his 15-month appointment with the pediatrician next week - but I was just wondering if I should be concerned about this?? Has anyone else experienced or seen anything like this? I am a first time Mom, so maybe it is normal but I am just not so sure.