the issue is not whether it is normal. that's not even a therapist's concern. the issue is whether it's healthy. the perspective is skewed as well. a "normal" reaction to an extremely abnormal situation is by definition not normal. "normally" people aren't perpetually angry because they don't "normally" go through what you've been going through.
PTSD is a "normal" reaction to trauma. should people who suffer from devastating PTSD not seek help because it's a normal reaction? completely skewed way to look at it.