Insane

We did the Insanity workout for three days and on Friday, I had such muscle pain that I just couldn't do it.  So, we took a break.  Unfortunately, that break lasted through Sunday.  My weigh in wasn't good, 211.4 pounds.  We started Insanity backup this morning.  I have the 5K in less than 4 weeks but it is really hard to run after completing that workout.  I'm not sure how to get that done.  I tried today and couldn't run really at all.  I just walked at a an incline for a while.  Maybe I'll have better success on the days Insanity doesn't focus on the legs.