Not a good end to yesterday

Well yesterday ended on a worrying note. My eldest son Glenn went for a check up at the Cardiac unit i St Thomas's after having a pacemaker fitted last year when his heart rate dropped to 30bpm for no apparent reason and they could not get it up again. After numerous tests was told that his heart  showed signs of several heart attacks although he was not aware he had had any and that he only had 65% function left on his left ventricle.
As this could be a congenital anomaly they want him to  go back for further tests and said that his immediate siblings and offspring should also be tested.. My younger son had heart checks a few years ago because he has asthma and they were fine bu it does mean that Ben and Jade Glenn's children will have to have tests. As you can imagine this knocked me for six! Thinking it over during the night was probably a blessing that he had to the pacemaker and subsequent tests as otherwise this could have gone unnoticed.
Thank goodness we are a close family and i know that will help us all especially Glenn to cope with this bt it is not going to be an easy time.