Nothing that has ever happened to me, good or bad has ever impacted me more emotionally than what has happened to my wife. She got promoted at work and I was eternally proud and happy for her. I've had to have counseling after her seizures left her unconscious, bleeding, not breathing with lungs full of vomit during the final episode.
I resuscitated her, got her to the emergency room. She had brain surgery which fixed the problem. I lose my mind every time she gets sick now, even if it's a mild headache, but I hide it so she doesn't know how much this all has impacted me.
Never thought I would ever need counseling, even with the dangerous life I lead. To the OP, I'm very happy the love of your life is doing better. I don't know what kind of psychological toll this has had on you since everyone is different, but counseling was effective for me.