@22nw22
It is possible to interupt an examination ("stop the clock") for medical reasons. HOwever, arrangements will need to be made before the examination (even if you end up not needing them). The Key Person in school is the Senco (Special Educational Needs coordinator).
There is an organisation called The Joint Council for Qualifications (JCQ) which is responsible for setting rules nationally for such matters as “stopping the clock”. They produce a document called "Access Arrangements and Reasonable Adjustments"
that schools should use when making these decisions.(This is used in the "Real" exams, but I imagine schools would follow the same process in Mock Exams)
https://www.jcq.org.uk/exams-office...rangements-and-reasonable-adjustments-booklet
(pdf link on right side of page)
Applications can only be made by schools, not by parents, and a key person in this process is the Special Educational Needs Coordinator (Senco). The document outlines conditions for "Stopping the clock/supervised rest breaks", (which must be looked at before the exam season). All secondary schools should have this document
In the document early on there is a statement outlining what the Senco must do
Section B looks at the area we are interested in.
Page 21 has details of "supervised rest breaks" –
Section 5.1.1 talks about when the rest break can and cannot be used
Section 5.1.2 says "There is no maximum time set for supervised rest breaks. The decision must be made by the SENCo based on their knowledge of the candidate’s needs and the candidate’s normal way of working when placed under timed conditions."
The Senco would need evidence to show why the candidate might need these breaks, so any evidence you can provide would be helpful. What happens to you when you suffer a "low". Why would stopping the clock be important
The Senco is key in any of the decisions made. I would recommend that you (with a parent/carer) arrange to meet the Senco and talk through why you think some of these things are required , and talk about what evidence is required to support the Senco in applying for these.
Best of luck