I strongly relate. Definitely sounds like sensory sensitivities.
Have always had sensitivity to sounds in the way that produced a strong emotional reaction (or Misophonia for short). Hearing repetitive noises, whistling or anyone eating literally makes me want to scream. Bash my head against a wall. Get physically violent with the person making the noise. My brain goes from 0-100. Then on top of that it just general sensitivity to all noise, and everything. I can hear the electronics in my house. When people look at me I can literally feel their gaze on my skin, physically, like something is lightly caressing me. Sudden loud noises send my brain into meltdown mode and it generally takes the whole day to comedown from the fight/flight adrenaline activation. Crowds are horrendous. Being the centre of attention makes me want to die. Emotional conflicts are the worst - it takes weeks, months sometimes for my brain to "come down" from the event. It just replays and replays constantly, always with that wave of adrenaline/panic. Like PTSD. I've had insomnia since I was a kid. Pre-medication it took me 3-5 hours to fall asleep (if I did at all). Any little noise could wake me up.
It's all so tremendously exhausting. And it's been my reality every damn day of my life.
I have no control over this. Nothing has worked for it. It hasn't gotten better, in fact it's gotten worse. I have ADHD/OCD as well, so its probably part of that larger brain dysfunction.
It feels like there is no protective coating over my nerves. Like they are completely exposed and raw.
Honestly the thing that has actually helped is just plain avoidance. I don't leave the house very often. I stick to quieter spots. And I always, always, always have headphones on me. Learned that too many times the hard way. Also GABA promoting medications take the edge off a bit for me. But they come with their own set of problems (like anything really). I'm on Baclofen, it's the only thing that can get me a somewhat restful sleep, and dulls the intensity of the stimuli during the day. I'd be dead already without it for sure. But it's no where near enough.
I'm sorry you've being going through this. And that I don't have any better advice/solutions to offer. It's sheer hell having your nervous system prodded and provoked so frequently and intensely.