I just started this diet a few days ago...

What happens to all the extra skin on my belly when the fat is gone?

5 years ago, I weighed 185lbs. I gained 100lbs very quickly, (depression) and it has caused many stretch marks on my belly, shoulders, upper arms and upper legs. If my skin is not very elastic, will the extra skin ever go away?

I excersize daily.

another question, different topic:

My muscles seem much more sore than usual after biking. Am I in danger of losing muscle mass on this diet?

BTW - I invested in this nifty scale that has a built in Body Fat Analyzer. I am at 32.4%