At least this part sounds like an actual grievence if true

was told that her colleagues had been briefed not to answer her radio calls.

But, he sounds rather melodramatic...

The stress and anxiety became so great that she believes it was the reason she lost clumps of her hair, gained four stone in weight, developed insomnia, and woke up in the night with stabbing pains in her abdomen so extreme that she wrote a “dying declaration” stating that if she died it was a “direct impact of the actions of the senior officers”.