My DD is 3.7 and has always been sensitive to loud noise. We've just been to a birthday party where we didn't even make it through the door due to the noise. At a party a few months ago she became hysterical when a few balloons were burst. Very upset at a local jazz festival a few weeks ago as there was a band playing. Lots of examples of fun days out being ruined by a noise setting her off.
She's usually very confident and goes to a big pre-school in the nursery near where I work which she loves. She complains that her ears hurt, so it's pain rather than fear/shyness. We've got a wedding tomorrow and I'm wondering if we should not bother going.
There is a history of hearing problems in DH's family and although he loves concerts he struggles to hear speech in noisy places. He can't distinguish different sounds in loud places.
So, wait for her to grow out of it? Avoid noisy situations (was hoping to go to family friendly festival this Summer, maybe not)? Plug her ears with cotton wool? Some sleb offspring festival ear defenders maybe?
Or just tell me yours did this and it got better (hopeful).