less than 6 weeks of starting Secondary School, my daughter had an Ice Skating accident resulting on having to use crutches. We spent months trying to get Docters to listen to us, so when she was finally diagnosed with HMS and referred to Great Ormond Street we thought that things would get easier....Wrong the real battle began, convincing the school.
After weeks of going up to the school for various reasons, i finally saw red when i had to pick her up from school as two older boys had cornered her and pushed her over in the corridor saying that she was "Faking it". After talking to her i discovered that a teacher had made her walk down the stairs on her crutches as she was fed up with her being late for lessons, due to her having to wait for the Caretaker to take her up/down in the lift between classes.
That was the final straw, i went into the school the next morning armed with printouts of all the information available on the HMSA and NHS CHOICES SITES demanded to see the Heads of Year and made them read all the info i had gain (also mentioned Education Authority and Health and Safey) worked a treat. She was issued Lift Key within 2 days, was given access to libuary for lessons like PE and Dance where she now reads or dose Homework it has made it so much easier and happier for her and us.
So my advice is gather every bit of info you can and make them read it, don't just tell them they won't listen.
But if they have the information put in front of them, hopefully they will be more understanding