Getting my licence renewed with high blood pressure

You are absolutely right about your blood pressure reading. The DVLA rule is that it must not be consistently more than 180/100, so yours is well below that level.
I think I can help with this but first of all, can I ask you a couple of questions. You say that you “handed your forms to the licensing department”. So did you actually go to DVLA in Swansea to deliver your licence renewal application in person?
You say that someone discussed your medical case. Was this the clerk who took your papers from you, or did she/he go away and find a medical person to talk to you?
Thanks.