Welcome to the Forum! Sorry it has to be under such circumstances for you.
Sounds like there could be some cause to involve law enforcement here. But at the very least, consider using obscured or private geoprivacy for all your observations going forward, and retroactively obscuring your previous ones. Instructions for doing so can be found here:
https://forum.inaturalist.org/t/change-geoprivacy-on-multiple-observations-at-once/23570
Yes, they may already know your general neighborhood, but lack of location detail may still be a worthwhile deterrent. Also avoid identifiable backgrounds in your photos that could lead them to deduce the location.
If you believe you know the specific iNaturalist user(s) involved, don’t post them here, but email help@inaturalist.org with the details, in case action by site staff is warranted.