For me it's hard to tell if my sensory issues themselves have changed or just my reaction or coping has changed. During childhood I wasn't aware of my sensory issues and so I would deal with a greater range of sensory experiences in the moment but I was really just bottling it up which resulted in meltdowns later. Now I notice more the effects of it in the moment so I might avoid situations that in the past I didn't avoid.
It also changes with my mental health. If I am more anxious my body is in fight or flight mode more. This causes my senses to become heightened which naturally makes me to be more hypersensitive.
There are some sensory things that I've become more accustomed to over time and bother me less than they used to. For example, I can cope a bit better with traffic sound than I could when I first moved to the city 2 years ago. It still can send me into sensory overload, but I don't need to use my earmuffs as much as I used to.
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"Curiosity killed the cat." Well, I'm still alive, so I guess that means I'm not a cat.