Too Fast?

EveryGuyDiet

So I've lost 122lbs since Jan 6th 2013. I did this by eating several small meals a day, and exercising. My calories ranged from 1250-1600. I started at 317 and I am now 194 and some change. I haven't really lost a lot of muscle tone, my legs are huge from bicycling. But my skin is saggy. If I bend over, my belly skin hangs around 7 inches (maybe more). My butt going down to the back of my legs looks like a shar pei. I have very little fat or loose skin on my arms and only a little on my inner thigh. I have now re-evaluated and I am eating between 1600-1900. I have a BodyMedia Fit and I honestly burn a minimum of 2700ish calories and frequently go over 3000 calorie burn. There has even been days I have burned over 4000. I used to get dizzy spells when I stood up. At first I thought it was just because my heart was more efficient and beat slower, so I was possibly standing up too fast and blood couldn't get to my head. Then I thought maybe it was low blood pressure. I'm now almost 100% positive it's from malnutrition. Since I have upped my calories, I don't have the issue nearly at all...and when I do I go have a snack and I'm better. The weird thing is, I am never hungry. I don't get carvings very often (except occasionally to go out in the back yard and grill some meat...which really isn't unhealthy). Any one else out there have a similar story and a happy ending where their skin doesn't fold in on them anymore because they upped their calories and started putting on massive muscle??