Struggling with Trust and Identity

we're afraid to tell anyone we may have DID anymore... we used to tell select people but our ex kept telling people without our permission...and since we cut him off he's been telling people we're faking it even tho he claimed to have it too ... and recently the current person we like has been being harassed by someone I assume they used to date and they told me that the person was talking shit about us calling us fat and saying we fake our system and we don't even know this person so it's leading us to believe the person we like told them about it ... (context the toxic person is jealous whenever our friend hangs out with us) and now we don't know if we can trust them even tho we've had a crush on them for a few weeks now... but anyway.. some days we feel like such a fraud because we aren't diegnosed.. we don't claim to have DID but we suspect that's the case.. ..but since we don't have like an actual diagnosis we feel like no one will take us seriously and it really fucks with our anxiety.. we've had people doubt us in other online spaces (reddit 🤢) and it just feels bad .. because we already do that ourselves we don't need more people on the outside telling us we're fucking stupid and that our struggles aren't even real.. but yeah.. we've been losing sleep over this and it sucks