You need to go back to the cardiologist who looked after you last year and get all your notes and reports and his diagnosis. You have given but one measurement which may be an error. Speak to the original cardiologist first before approaching the CAA. It may be an issue or may not be
Unfortunately UK medicine has now closed down and only time limited emergencies are being dealt with so I regret this will have to wait until the pandemic is over. However, there is no training and no recreational flying either. Please dont go bothering your GP or cardiologist as you can do nothing and we are all very busy
I would be happy to help later this year when you have more information.