Just the fact that I was losing something of myself that I didn't realize potentially could have been contributed to the affects of the multiple runs, multiple vibrations, the concussions that actually I'd never been diagnosed with my entire career.

事实上，我失去了一些我没有意识到的东西，这些东西可能与多次赛程、多次（撞车）振动和脑震荡有关，而实际上，在我的整个职业生涯中，我从未被诊断出患有脑震荡。