I'm getting so fed up with stupid Hearies who don't get that people just can't hear. I was hearing before and now am loosing my hearing. I'm HoH now and some days I'm completely Deaf. I'm so frustrated with ignorant people that act disgusted with me when I ask them to write stuff down or repeat themselves loudly! How do some of you deal with the frustration? I'm about ready to punch the next guy in the face who shoots me a dirty look about it!
I'm sorry you're frustrated, and I don't doubt that there are people that act stupid when you ask for help understanding them. I know that if a deaf or HoH person asked me to repeat something or write it down, I would go out of my way trying to accommodate them.... and because I try to keep my default setting to assuming the best about people, I assume that you would have done the same when you were a hearing person.
It feels like I get crazy looks for everything under the sun when I'm out in public, and I'm a hearing person. But with an autistic child, I get looks when he is loud, or isn't able to use the same level of speech that other children his age use, and I get lots of eyes rolled at me when we are at events that have childcare and I explain that all doors must be locked at all times, otherwise he could escape, run into traffic and be killed. It's unfortunately a society problem that many people are rude unless they have to be otherwise.
It's a lot easier to shrug off now that I have been dealing with it for a few years now. Every so often, someone gets under my skin again, though. I imagine it will be similar with you- you will care less about rude people's reactions the more often you navigate those situations. Also, the more coping techniques you come up with, the easier it will be. The notepad with the heading on it sounds like a good idea. (Although I was really confused when the one person responded to your post as if hearing people should carry around notepads, waiting to run into deaf people that might need them... huh? Maybe I just misunderstood.)
All I can say is to try not to let the haters get you down, and remember that there are plenty of good people out there that may not understand all the issues that you are navigating, but they are willing to learn and help when they can. I may not be HoH or deaf, but I have plenty of health issues for myself and my loved ones that make it difficult to work and live in the world, and I can tell you that things will get better with time, experience, and by meeting the people that are not rude jerks and that will walk through this life with you, no matter what your differences are