I am an ex-educator and am not from Canada. But, I can certainly empathize and commiserate how difficult it is to be an educator with this disease. In fact, it is quite difficult to hold any type of job with this disease, especially when the disease is active.
I am so sorry that you are having so many serious issues with your Lupus. Have you advised your doctors that you believe you are having mini strokes? If not, please do so immediately! There are treatments that might help, but you must start taking them now to prevent these mini strokes from escalating and/or causing serious damage.
I wish you the very best and please keep us posted about how you are doing.
Peace and Blessings