I hope things clear up soon, i cant imagine the necklace would cause it. My dd has been wearing her necklace since around 5 months (shes about to turn 2) 24/7. I took it off a few months back and the next day she was very whingey and just completely not herself & agian the following day. It really had me stumped and all i could think was the necklace, put it back on her and she was back to herself. Her last teeth and just working their way through now so im going to be interested to see how she is once i remove it