I feel ya Pamela...
I also have Mitral valve prolapse as well, along with some anxiety
I've been getting shortness of breath, chest tightness, and fluttering of my heart as well. This had made me really anxious when I'm around alot of people, and occassionally when I am driving or by myself. I feel as if I can't get sufficient breaths when my chest tightens, and like you, it makes me nervous and mixed up. I also get chest pains, which I'm not sure if it's related to MVP.
Anyway, I know how you feel, and would also like to know if MVP and anxiety are related in some way? It seems like the more I noticed and focused on my heart pains, fluttering, breathing, etc., the worse my anxiety got.