Hi @kabash, fellow Melbournian. Sorry you're here but welcome.
Just a quick answer (cos it's late!) to your question. Grade 1/2/3 refers to how rapidly the cancer cells are multiplying, how aggressive they are. Stage 1 - 4 refers to size and number of tumours and how far they've spread in your body.
You sound like you've getting a good handle on things pretty quickly. The beginning of the BC shit show is usually the worst bit. Things tend to get better when you get a treatment plan, so hang in there and try not to cross bridges until you come to them. Big hug, K xox
