Losing weight

In June, I started training for a half marathon, and was running a good 5 days a week.  I've dropped from 230 down to 220, and it feels really good.  But, I tweaked my calf, and now I can't run for a few weeks.  It's a bit frustrating.  I keep trying to run, but the doctor says I keep injuring it.  I need to really give it some good time to heal.  The half marathon is in December, and I still want to run in it.