Nichola, who lives in south London, said Year 6 pupil Alistair was bright and capable, especially in maths, but struggled with inflexible thinking, hyper focus and sensory overwhelm.
"They call it a meltdown but for me, it feels like an eruption," she said.
"He just reaches a point where the emotions are too big. He can't manage them.
"It affects everything. If I have a day off, I have to stay local because I need to know there's somebody around to pick him up."
The number of with children autistic spectrum disorder receiving support in London has increased by 158% from 17,832 in 2015-16 to 46,095 in 2024-2025, according to DfE data.
