Muncie, I think you missed BBT's comments "I would still rather break my leg than do that. I keep wondering if I can come down with a migraine or diarrhea or ANYTHING that can prevent me from going". I don't believe wishing one's self ill is ever a good response, especially to an invitation from another, to be included in a private party, special to that person.

I am with Echoes, BBT7, if you have decided you are not going but I would go, if only to make further in-law relationships "easier" and for myself, to keep a boundary on what I will allow my anxiety to control. If you give in to yourself and do not go, where/how will you draw the line in the future? It will only get more and more difficult the more power you give your anxiety.