I think everyone secretly yearns for the opportunity to reenact that tired old movie cliché where someone half-heartedly says "yeah, I know how you feel" which causes the other person to angrily respond "NO, YOU DON'T KNOW HOW I FEEL, YOU CAN'T KNOW HOW I FEEL" and for the first person to sheepishly agree and apologise for the presumption.

It makes every character who has ever said that seem like an insufferable cunt, and in real life it's a thousand times worse. It sounds more like you fear that someone is trying to crib some of your weirdly-beloved pain as though it's currency, and to wear it on themselves like the spoils of a war you just lost. The difference between thinking that, and thinking "this person wants to be with me in this moment and share the burden", is so slight that it's easily-missed, so I don't necessarily fault people for the mistake. But you can literally just choose to go with option B in future, and in doing so improve your overall mental health and general vibe.