<human>: Can you give me the gist of the text in a nutshell?

My (31f) good friend (29f) says she has a slight hearing problem that she was born with. She said she has seen doctors about it but that it cannot be fixed.
She is most of the time aware of how TRULY LOUD she is. Examples: we need to shush her in restaurants and bars because every other table can hear her, we were asked to leave a balcony because her voice traveled so much it was disturbing the neighbors... It is BAD.
I adore her and want to keep her friendship, but her volume is truly off-putting. It makes having conversations with her embarrassing because I never know what personal details she might repeat to the whole room!
I would love some advice on something I can say to her other than "See a doctor" (since she's already done that) without hurting her feelings. She is beyond sensitive and takes everything personally.
<bot>: Good friend is LOUD and I need to know how to tell her to be quiet without hurting her feelings. Doctor visit is not a solution.