Thanks, cocosparkle, for your suggestion to try Bach's Remedy Rescue for Charlotte's fear of storms and fireworks. I've never heard of it before - and it's sure worth a try! I've already ordered a bottle and it's on it's way to our doorstep. I hope it can help - at least a little - to alliviate her loud-boom fears.
(blurry...she never sits still for the camera because she hates having her picture taken almost as much as she hates thunderstorms)