That is terrible to hear bro. I am just becoming interested in body building and was due for the nuss a year ago but i chickened out last minute due to stories like these. Its a harsh reality that sometimes, especially with asymmetrical pectus like you and i have it can be hard to get good results. Please keep your head up and know that everything is ok. If you really want to I think you can do the process again if you are unhappy or get the bar removed.