Always make sure you have a protective binder to store all your medical records within. I keep mine in a brown, zipped portfolio case. This kind of thing is important for a specific reason. You never know when you’re going to need to pull out that medical information out to show off to Social Security or whatever have you. If you have paperwork showing that you’re deaf, have a series of mental disorders, serious medical conditions, high blood pressure, etc, keep all that information in that portfolio.
Likewise keep all information about medications with that portfolio as well and store everything in chronological order.
Should you need something from the portfolio, you’re going to want to make a copy of that to send rather than sending the original risking it getting lost.
I would recommend getting a printer like this, something you can simply just press a button to make a new clean copy. It also doesn’t hurt to have a redundant copy in your portfolio/binder that’s kept with the original in it’s correct chronological order.
Keep all medical records with you, regardless of how trivial you may think it is.