I know where you're coming from as I too started to over analyse all the sounds I came into contact with. This paranoia in my case was driven mainly by the Internet, in fact I'd go as far to say that I would not have bothered if there was no Internet to trigger my inner anxieties. This is where there is good and bad in what you read online.
I downloaded a decibel metre onto my phone to monitor certain environments. At one point I even wore ear plugs as I drove around because the noise registered 85 decibels. Right now I'm at the stage where I can see how I was going about things the wrong way, firstly that level of OCD about something will actually work against you and make T, and H if you have it, worse. Also most environmental noises will do you no harm at all, in fact you can do more harm over protecting your ears than good. Most people fail to realise that between the 80-90db range it takes hours for any damage to occur. Most of these loud (loud is relative here) events are harmless and are the backdrop to normal life. That is as long as it's not a daily occurrence, around 8 hours a day, as an occupational thing or likewise. In that case you should be advised to wear protection anyway.
The time to protect your ears and have genuine concern is when the noise level really rises, such as in clubs and concerts etc. A lot of gigs hit 120 decibels which is pretty much damaging immediately, from now on I'll be wearing custom ear plugs in all of these environments but for everything else I'm going to do nothing.
Tonight is a cross roads for me as there is a concert on which I booked at the start of the year, and it's something I've been waiting to see for many years. I'm not going to be going, which on some level is devastating, but I decided it's too soon for me to risk going. I believe this is more or less a psychological reason, as if I wore my blue hearos plugs I'd get a decent reduction in db, and if I stood at the back I doubt anything would happen. Bone conduction is extremely negligible.
But saying that I've decided I'm not mentally ready. It would invoke some serious thoughts that could easily be misconstrued, id be battling against my extremely over analytical mind to convince myself it hasn't got worse. The stress alone would probably make it spike rather than the noise.
Given a bit more time I intend to fully immerse myself back into everything.