Hi Jen and Welcome to HealingWell, we're glad to have you here!!
I have problems with my Mitral Valve as well, though mine is just simply called Mitral Valve Regurgitation with stenosis (calcium).
Mitral Valve Prolapse can cause plenty of symptoms, or none at all! Are you currently having any problems, besides the chest pressure? Do your Dr.'s plan on doing any corrective surgery?
I found a site that gets into a better explanation than I could give you...so please look it over and let me know what other questions that you have~I'd be more than happy to answer any questions that I can!!
Re your chest pressure and pain?, have your Dr.'s told you that is normal for this??, or is this something new to you? If that is the case, then do you have any other symptoms like arm/shoulder/neck/jaw pain?
Jen, we're here for you anytime!! So feel free to ask away!
Read the following article and see if helps a bit...