Has anyone gone into investigations for suspected chronic exposure and health concerns? Particularly in Australia

I've been working in a small Mohs lab 5 days a week (2m x 2m) with poor ventilation, no extraction and no fume hood, for nearly 6 years now.

We had always asked management to put in a fume hood etc etc. But the can always got kicked down the street on it.

I started my own Company late last year and through this year have been using my extra leverage to push for safety etc now that I have my own employees I'm responsible for.

While doing so I decided to actually look up chronic health effects from xylene exposure and saw that well, I ticked nearly every box, and symptoms for some worsening over the last two years. Had been trying to solve a lot of it through my GP but never really coming back with hard answers and never really looked at them all possibly stemming from a single source.

I'm trying to push the hospital to do air quality testing atm and am looking at getting a Work Cover investigation begun by seeing my GP tomorrow.

Does anyone have any additional insight to what I should do, or how fucked I am?