The DVLA maintains registers of vehicles and drivers in Great Britain. Information regarding driving with a medical condition, Blue Badges and public transport if you’re disabled, plus rules relating to mobility scooter and powered wheelchairs can be found here: https://www.gov.uk/browse/driving/disability-health-condition
You must tell the DVLA about a health or medical condition that could affect your driving:
https://www.gov.uk/health-conditions-and-driving
If you require further information regarding the rules relating to fitness to drive, the forms you need to complete and the process involved in assessing your fitness to drive:
DVLA drivers’ medical enquiries
Telephone: 0300 790 6806
Monday to Friday, 8am to 5:30pm
Saturday, 8am to 1pm