I think your doing a wonderful job so far!! If your body is telling you to take a break, take a day off. You have been putting in a lot of time lately on your exercise and instead of doing it gradual you went in full force, I'm sure your body is in a bit of a shock period right now, but it always hurts at the beginning and eventually after a few weeks it will get better I promise you that. Do you remember how you felt this time last year?? You were so excited when you got down to 180's I remember that, you WILL get there again, don't let the blues get you down, take a day off to rest and regroup, then get back out there again tomorrow and do your walking. Maybe, don't push so hard the next few days, maybe try walking a little slower or just as fast, but not for so long. How are your nightly munchies?? I remember you had problem with those before too, hopefully that's not messing with you this time. I know you can do this, DON'T GIVE UP, you deserve to get down to your ideal weight, when your ready!
HUGS
Kim