Yes, natural sounds do trigger it (for me). The difference is that if it is a natural sound, it becomes a problem to be solved - intermittent dripping from taps, the noise of the wheel in my daughters hamster enclosure, or something tapping a window are specific cases I can cite. Those incidents resulted in a) me learning how to replace a leaking faucet assembly (the taps and faucet were one unit) , b) upgrading to a better, quieter hamster wheel, and c) trimming a tree.

When people are the cause it becomes more challenging. People feel attacked when you tell them they are chewing loudly, or they think you are weird when you complain about the sound of the specific pen they are using makes when they are writing on the paper bothers you. Couple misophonia reactions with ADHD justice sensitivity and the emotional reaction can overload my rational comprehension that it is quite normal to make, tolerate, and ignore those sounds to make the stupid fucking meat between my ears feel like I am being targeted by whoever is making the noise. 95% of time I can manage it, but when it gets overwhelming my reactions can be suboptimal (like, wildly inappropriate when I was a kid, but as an adult pulling an Irish goodbye and just leaving, which can be a career limiting move when you are in the workplace).