The OP is only 28, so it will be because he's a millennial

Anyway, it's impending Hallowe'en and Guy Fawkes, so fireworks will be going off on random nights over the next 2-3 weeks, so will have to get used to it. Then there's NYE to look forwards too
What about thunder and lightning?
Since this is a computing forum, then what about computer games? Especially first-person shooters, where you'll be expecting gunshots and bombs going off.
If this post is genuine though, they perhaps wear ear plugs or ear muffs while you're outside? Stick some tunes on?
Similar issue here in that I have a colleague who is so loud that her voice grates on me. This is despite the fact that she sits further away from me in the room than any other colleague. So if I get a headache from this, I stick some noice-cancelling headphones on. Other colleagues have done the same, or made their excuses and hot-desk somewhere else etc.