Itchy C Section scar

Gra
In my second trimester and my C section scar from 17 months ago is itching like crazy, especially the last few days. 
Anyone else have the same problem? I'm sure it's because I'm really starting to show, all of a sudden I'm huge and I've piled on weight. It's probably time to stop eating all the cereal, it's my number one craving though!