I've had 10 bilateral ECT treatments over a year ago. Would smoking or eating cannabis products be dangerous now that I've had "shocks" to my Brain?

Doesn't matter. The ECT treatments you had will not have any adverse effects on your use of cannabis although I can think of all sorts of reasons not to use it....unless it's under medical direction and supervision.
Debatable. Great question that is hotly debated. Is cannabis (THC/CBD) medicinal for all kinds of conditions or does it exacerbate underlying mental health or nervous system conditions? Some may believe weed (regardless of how it's ingested) may improve depression post-ECT treatment. Some believe adding this substance to brain function/chemical transmissions could make depression worse and render ECT useless.