No checklist can diagnose anyone — only a clinician can, by evaluating the person directly. But common patterns in a narcissistic mother include love that's conditional on your performance, competing with or undermining you, rewriting events so she's never at fault, guilt used as control, and an inability to truly apologize. If you constantly manage her moods and leave interactions doubting your own memory, that pattern is worth taking seriously.
If you grew up inside it, this dynamic feels normal — which is exactly why it's hard to name. You don't need a diagnosis to take your own experience seriously. The goal isn't to label her; it's to understand the pattern well enough to protect your own wellbeing.
Putting language to what you lived with is how the fog starts to lift. If it resonates and you want support, a trauma-informed therapist can help you make sense of your specific situation.