Hi everyone! Thanks for such great responses (like I'd expect anything less from AD though right?) Sorry I didn't get back to everyone sooner.
@DeafDucky Yep that's pretty much what I do now. My gym is full of out of control kids though and I've had to go complain sometimes which makes it harder. After I approached the lifeguard about kids throwing trash in the outdoor pool a mom came up to my lane and started screaming, she was apparently cussing me out and threatening me according to other swimmers. When I didn't respond it only got worse, and when I finally saw her and later with my HAs asked what had been going on she'd complained to management about me haha. I'm switching gyms soon though, so for now I'll stick with the point at my ears and shake thing.
I do have nice people in the locker room try to talk to me and not realize it until I've put my hearing aids back in. Once they see that they almost all understand why I didn't respond, but sometimes they've left before that. I just don't want people thinking I'm rude!
@Jane B. Good idea about at least a waterproof box. I've put my hearing aids in a little one with my towel and then dried off super well and put them in while I'm in the hot tub. For now with my crappy old ones I feel okay doing this, when I get my expensive fancy new ones I'll reassess! lol
@toffeekukki I go most places by myself. I have a dog I'm training but I still don't think I'd bring him to the gym just because I don't really -need- him there, I need him for busy and/or outside places where there's risks I can't hear even with my HAs like approaching cars or the background noise is too bad and there's things I need to hear that could be threatening.
There is a tiny dry erase board at work that's extra I might borrow that
@femme Fatale to write a note to put at the end of my lane in case someone is trying to get my attention or wants to ask to share a lane or something. I tried a piece of paper once and obviously that didn't work well lol. I felt aa little weird with the sign, I don't know why, I'm not self conscious of my hearing loss but writing it down to put it there as a label of sorts was weird to me. If other people have done things like this it's reassuring.
Thanks again everyone, happy swimming!!