The first thing admissions tutors do is take all the applications with very bad grades and put them in the rejection pile. I know quite a few admission tutors and all have said that this is their standard protocol. Now, although your grades are definitely nothing to be ashamed of-they don't, however, compare favourabley to other Med applicants, most of whom will have straight As.
So, athlough you can apply again this year with your work experience ect etc...i fear you are more than likely gonna be getting back rejections in Jan, after you were filed away into the reject pile. If it was me? I'd go to a degree in Anatomy, biomed or something and try to get in off the back of that. Ok, it may be tougher competition for this but its the only way i can see you overcoming your difficulties.