One item that going to an audiologist v. OTC is the option of having custom earpieces molded for your aids. Yes, it does add $, but the comfort factor (imho) is worth it. I've lost count of the times I've gone to bed to remind self to put them into the charger; there was the time I got into the shower and realized I was still 'aided' just as I began putting my pate under the showerhead...
The shock of bailing out nude and wet into a cold room to hastily dry off 'enough' to remove them Will embed that routine. Trust me on that, if nothing else... ;) 🙄 *L*
There are some 'side effects' of wearing aids over the long term (4ish years in my case) one may notice...(this or these may be distracting to some, and tend to be of a transient nature of notice....)....
Jaw movement can cause the in-ear aid to wiggle slightly, a 'rubbing' sound, typically when eating or a yawn...
There's a slight 'tin can' quality that shows up in certain situations; hard to quantify if it's due to the space one's in (room eq strikes again! *L*). Widex has a 'demo' that exhibits this, although slightly exaggerated to make the point....
....but I'll hold off until under IRL experience....
I was classified as 'severe', everything above 6~7Khz rolls off and down.
The eq curves on my 31 band units, before and after (the latter 'tweaked for taste v. need') is depressing on the one hand; the other a testament to how much and how well aids can restore ones' enjoyment of the music we live for.
Look @ it this way, go get tested. The majority will do it for free, the better ones will tell you precisely what's 'gone south'.
Even mild losses can be corrected for, the ones' that age almost inevitably causes; if you find a way to avoid getting old (or older), please share it with us....
...and don't limit it to hearing, either... ;)