Every mother’s worst nightmare came true for actress Eva Amurri, after a night nurse dropped Amurri’s three-month-old son on his head.

She revealed the terrifying news on her website HappilyEvaAfter.com: “A couple of days after Thanksgiving, our Night Nurse fell asleep while holding [my son] Major and dropped him, and he cracked his head on the hardwood floor,” she explained.

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Amurri, 31, described the terrible sound of Major’s head bouncing off the floor: “[My husband] Kyle [Martino] and I were sleeping at the time and were awoken by the sound of his head hitting the floor, and then hysterical piercing screams.”

And the outcome was severe: “He suffered a fractured skull and bleeding on his brain, and was transported by ambulance to Yale Medical Center where I spent two harrowing days with him to receive emergency care and further testing. To say these were the most traumatic and anxious two days of my life is an understatement.”

The daughter of Susan Sarandon prayed for a miracle and to her thrill, Major is going to be fine: “By the grace of all of his many angels, and every God one cares to pray to, MAJOR IS FINE. Completely fine,” she wrote. “He has been healing well, hitting milestones, cooing, smiling, and generally showing us that he is and will be okay as he grows and develops.”

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But despite the relieving outcome, Amurri blamed herself for leaving the child in someone else’s care: “Let me tell you – the guilt I bore in the days and weeks after this accident was more intense and more damaging than anything I would wish upon my worst enemy,” she said. “I wept in the hospital, telling anyone who would listen that it should have been me. That I was to blame.”

And although she has made peace with the fact this freak accident was unavoidable, it has changed her responsibilities as a mother: “It’s nearly impossible for me to trust anyone but myself to take care of Major now.”

After sharing her story, Amurri posted an Instagram photo of her and her son, and in the caption of the photo, thanked those who shared their support of her story and fires back at those who may have been judgemental.

“Thank you from the bottom of my heart to everyone who has reached out with words of comfort or to share their own stories the past 24 hours. It is so moving to know there are so many of you who are wishing our sweet boy well, and who are rooting us on as a family,” she began her Instagram caption on Monday. “To those who have expressed judgment, cruelty, and criticism of me, my choices, or my fragility during this time- I’m not going to justify myself to you,” she wrote to critics in the post, and added, “But I sincerely wish that 2017 brings you enough

“To those who have expressed judgement, cruelty, and criticism of me, my choices, or my fragility during this time- I’m not going to justify myself to you,” she wrote to critics in the post, and added, “But I sincerely wish that 2017 brings you enough self-love and confidence that you no longer feel the need to tear down another person during their darkest moment. Peace, please. Xx EAM,” she fired back, ending her caption.

The “Mothers and Daughters” actress also has a two-year-old daughter, Marlowe Mae.