OMG! AM I GONNA BE ALRIGHT? stove knob was on leaking gas when i was sleeping!?

my mom left for work at about 10 this morning, i just woke up and i smelt gas. i looked in the kitchen and on of the burners was turned on. so i was breathing in this crap for over 3 hours when i was sleeping! it was only on low but i am still worried about my dog and i. i cant call my mom because she will get in trouble if she takes out her phone