The university has a duty under the Equalities Act (2010) to provide Reasonable adjustments.
"A reasonable adjustment is a reasonable variation or alteration made to university processes so that a disabled student can access without disadvantage the higher educational opportunities of the institution without compromising the expected academic or professional standards." (UoB Code of Practice on reasonable adjustments for students).
Anyone can ask for adjustments if they need them. But to have legal rights to reasonable adjustments, you will need to be defined as ‘disabled’ under the Equality Act 2010.
"The Equality Act says a disability is a physical or mental impairment which has a substantial and long-term adverse effect on your ability to carry out normal day- to-day activities."