I don't know if you've met Heather or not. If you haven't, you should.
She is an amazing and godly woman. She will tell you that God is good ALL the time, and she means it. God is good when your third child is born with chronic heart defects. God is good when your daughter has a heart transplant. God is good when you are told that your daughter has mitochondrial disease. God is good when you are told she is autistic. God is good when your daughter's school breaks ADA laws and causes you great inconvinience.
And now she is learning that God is still good when the Mommy must become the patient. God is good, in spite of learning yesterday that Heather has a brain tumor. God is good as she goes to the neurosurgeon this afternoon. God is good even in this.
Please pray for Heather's complete healing, for peace for her and her family, and for her to be able to continue focusing on how good God is ALL the time instead of how unfair this situation is.