Stomach Virus/ missing best friends wedding

So I posted in here a couple days ago looking for advice to help me because I’m supposed to be maid of honor if my friends wedding this weekend. I had been having intense flare ups- like severe - and needed a way to tell her I might not be able to do it (she knows I have pots) I didn’t know why I was having this. I deleted the post because I felt bad a lot of the comments were pressuring me to go regardless of my physical health and symptoms and just push it and try to make it as easy on myself as I can. (Not that it makes it okay but she missed my wedding because her mom was sick and I understood)

I guess I was getting sick. I’ve had severe diarrhea, fever, chills and all the other symptoms and it’s suspected norovirus. I’m still extremely sick right now and don’t think I’m going to be well enough by Friday night/Saturday for maid of honor duties. This illness has caused me to miss work, miss time at work, and increased pots symptoms. What are ways I could talk to her/ still somehow be a part of her day? Has anyone been through this?