AITA My mum consulted a paediatrician from a holiday video I sent

I was on holiday and sent a video of my toddler walking. It was such a lovely video to share - my child was so happy and babbling away. I immediately wanted to share the joy with my mum.

I sent the video and there was absolutely no response.

The day after I got home, my mum phoned me and said "don't be angry, I sent that video to a peadiatrician as I think there is an issue with your child's walking" . I hit the roof. 1) she had made a decision about my child without speaking to me. 2) she had shared the video of my child with a complete stranger. A big no no for me. My child has ZERO social media, I made it explicitly clear that my child's image goes no where . People wouldn't even know I have a child if I didn't tell them. Not even a WhatsApp profile picture.

My mum can't understand that she majorly hit a boundary. I had zero concerns over my toddlers walking. She said she would do it again and that she would be an awful grandmother if she didn't.

I had the appointment out of "what if" guilt. And there is absolutely nothing wrong with my child. I understand that this may have come from a place of love and done completely innocently but I feel she was jealous that I had gone on holiday with my in laws and wanted to put a damper on it.

AITA for going nuclear on her??