My 2.5 year old daughter has been REALLY off today...waking up early, whining and crying with requests quickly escalating to screams, not being nice to me or her sister, and begging to watch TV and do nothing else.

My mom swears it's the low pressure of the impending snowstorm. I laughed at her, until my mother in law (separately) told me the exact same thing.

Has anyone else heard this before? Think there's any truth in it? (My mom compared it to someone with arthritis or a bone injury saying they can feel a storm coming)