You literally took you life into your own hands....YOU knew you were in trouble and YOU acted. Congratulations.
In 2008 I had similar feelings and didn't bother calling anyone. I asked Carol to take me to the hospital ER. I must have looked terrible because they didn't make me wait more than a minute before they sat me in a wheel chair and started tests. During the next 3 hours they transported me to another hospital, implanted 2 stents, put me in the recovery room and two days in semi-private. Then back home for light rest and no lifting. Like you, I don't think I would made it had it not been for getting myself to the hospital.
I had to farm a couple of jobs out, but one of my friends (and a player) did all the set up on an important gig I felt I had to do.
I'm really happy to hear it worked out for you...and that you took matters into your own hands.
Eddie