Looking for a doctor experienced with treating chronic pain and fatigue

Hi! I'm wondering if anyone here is aware of a doctor between here and Mississauga who is VERY understanding of chronic pain and fatigue. I'm only 27 and have fibromyalgia and long covid (similar to ME/CFS) and I want to find a doctor near me that genuinely cares about helping me help myself in getting some of my life back. I also have ADHD and struggle with executive functioning, so figuring out how to exist in this state is a incredibly difficult task to do alone. I need more comprehensive care. I used to hike a lot and now struggle with just taking the dog out for a walk. I'm so young and I can't imagine living like this for the rest of my life. I want a doctor who doesn't hold back from doing tests (for example, I've been experiencing a ton of dysautonomia but my current doctor has replied to this thrice by telling me to drink more water and electrolytes, which is really all I drink anyway... He has no interest in sending me for any cardio related tests, like the tilt test, despite this potentially giving us an answer to what is going on and why). I want a doctor that rules out everything first, and also sends me to specialists (e.g., nutritionists, cardiology, etc.) for further guidance. I really think there's more going on then what basic blood tests can see. I just believe that my only chance at success in living comfortably is to work with a doctor that is already aware of these things and willing to dig deeper because it seems like chatgpt and bare minimum advice is the standard now in every doctor's office I enter. Luckily, I was able to get referred for lidocaine shots but this is just a bandaid over an issue that needs more structured care. Any help is greatly appreciated!!!