I have an aussie that just goes insane with thunderstorms and fireworks. I had an Rx from the vet, but have found that rubbing essential oils (Lavender) onto her coat and putting on a diffuser does a much better job. Good luck. It's so hard to see your best friend suffering!

Some Dogs are not at all concerned about Thunder,others want to go and hide under a bed,any,sudden,loud noise triggers their flight reflex,getting away from the disturbance. If you were not there as a comfort,they may have tried to escape.

Yep, they don't like storms and fireworks are worse.