Hello thirteen Wow! Looks like you had a bit of a premonition. Mom's physical body (her house) undergoing change (redecorate) ... "It was very dramatic." That fits well. And the colour green seems to be conveying a positive energy ... life, growth.
Has your mom changed a lot since her heart attack? For the better?
Thank you very much for sharing your dream. I have actually learned a great deal from this particular dream. Not knowing the results, I would have no doubt interpreted it differently ... I certainly would not have seen what was to come. My thoughts would have been fairly vague, I think, and more concerning you than your mother. There could still be an element of that perspective present, I suppose.
So again, thanks for sharing. Much light for your mom.
Oh, and let us know how well your mom progresses and if she changes somehow.