To be clear, the OP has a very complete answer in this thread.
Contact a HIMS AME as the next step. You will need a plan of action for three areas--
1. Your positive urine THC test requiring a HIMS AME as the first step in the process.
2. Syncope x 2. Likely you need a full cardiac workup and documentation.
3. Episode of vestibular neuronitis. Even if fully resolved, needs the eval from your PCP and/or HNS as to no residual and no possibility of a misdiagnosis like Meniere's etc. You've been told that there is a path, but it will take effort and time on your part.
4. Stop the CBD with THC.
The rest of it is just a bit of back and forth about how safe is marijuana anyway? Sure, veers slightly OT. But lots of threads veer slightly OT. Are you saying the mods should close the thread now?
BTW I'm only a student pilot, beyond my solo but no one's let me into their club yet...

. I did however, take Dr. Chien's sage advice and assistance without backtalk and got my SI for a class three medical four months after submission without a hiccup.
So yeah, to the OP, consider Dr. Chein's post carefully and take all the other posts with a grain of salt.