Oh man hope are feeling better! No worries bro, stressing out over your tank is one thing, but actually getting hospitalized over it is another. Just try to find the little silver lining in all this mess, maybe you could upgrade or even stock new kinds of coral or fish.
Here's a quick and simple idea I used before I bought a controller to alert me of a powerless. The powered UPS units have a small alarm when they shift over to battery, makes all sorts of noise good early warning system.
Hope this gives yea a little help. Take care