You need to tell DVLA (or perhaps the DVA if you reside in Northern Ireland) if you produce a situation which could influence your capacity to travel securely (often called a ‘notifiable’ issue) or a disability, or maybe a problem or incapacity has got worse since you obtained your licence. https://httpswwwandersoncarlconsu24523.oblogation.com/36576477/https-www-andersoncarlconsultancy-uk-driver-licence-things-to-know-before-you-buy