I'm so sorry you've been having this problem ((((((Rhiannon)))))) I can relate. Just as Sanityseeker says here, if my anxiety level is high, certain noises trigger yet more anxiety in me. Even at the best of times I am someone who really appreciates silence. I am not someone who likes to have the radio on or even listen to music very much. By far the most peaceful thing for me is silence.

I think it sounds like a good plan to make the connection between the noise and the thing/person causing it (and establishing that there is no real cause of concern). Also, as Sanityseeker says perhaps trying to spend as much time as possible in a quiet environment right now.

Or, alternatively, if you are someone who enjoys music, perhaps putting some headphones on and listening to something soothing?

I really hope you feel better soon