Good luck man, I'm a Mechanical Engineering student and kind of did the same thing (sorry, had no physical problems though so I have no advice as far as that goes.) My girlfriend and I had been dating for almost 6 years when I went to OCS (10 week PLC-C) and it just made our relationship stronger. Apparently commitment isn't valued much by some of these guys, which is odd, but it wasn't too bad. Hope everything turns out well for you.