Sorry to hear about this one
I have no experience of it, but it sounds like an occlusion (blockage) that the pump hasn't picked up on.
I am fortunate that my only experience of occlusion alarms is years ago when I used to fix infusion pumps in hospitals (amongst other things). Back in the bad old days, there were some pumps that could go up to 25PSI back pressure before they would consider an 'occlusion'. This could mean pain and bruising for the patient well before the pump considered there to be anything wrong.
I am guessing it is also possible in an insulin pump to have blockage problems that give symptoms before an alarm goes.
Perhaps consider calling Minimed and telling them what has happended. They may wish to send out a loaner and check out the occlusions sensor on your pump just to be on the safe side.
Gary
