My DD turned 15 months yesterday and for the last two weeks she has been throwing tantrums. I'm new to this as she has been a well behaved little girl so far. But now, she is screaming and throwing her head back and going 'OWWWWWW'.

She is getting her double teeth, both bottom and top, she's been very grumpy and been having a hard time doing #2s, and she screams a lot. Is this all related to her teeth pains? Or it some it due to the fact that at this age they act like this?