DGD's Holiday Concert is tonight and I don't think I'm going to be able to go..

Bad stomach issues today and bad "bathroom" issues as well.. I know it's not a bug - rather part of my ongoing medical problems - but the bathrooms are located way too far from where the concert is being held.. I can't take Immodium or anything of that nature (for other medical reasons), so that's out of the question..
I
hate what this is doing to my life.. I
hate being trapped in the house.. And most of all I
hate the "medical merry-go-round" that I'm stuck on that consists of "hurry up and wait" - while it has such a crummy impact on the other people in my life..
I don't know how to tell DGD.. She's going to be soooo disappointed..
Yeah - really feeling the "holiday spirit" today.. At this point, I wish it was just over and done with..
Vent over..