Is it possible that i have excess skin from losing weight?

I%26#039;m 17 years old and recently lost a lot of weight quickly because of a problem with my stomach. I went from 190 to 140 in 6 months. I don%26#039;t totally feel comfortable in my body, and feel like my stomach is still giggly compared to the rest of my body. I%26#039;m not sure if its excess skin, or still fat. Thanks.|||if you lost a lot of weight that fast, it is possible that it is skin that has been stretched out, after a while the skin should come back a little with its elasticity but people who lose a lot of weight end up having extra skin from it being stretch. also it could be a little bit of fat still.