Hi everyone! So, I've taken the plunge and signed up for my first 5k. While I've been exercising for quite some time, I'm really amping it up right now to get ready for the run. The problem I'm having is my tummy fat … when I sprint, my tummy jiggles so violently that it's actually painful. I've thought of purchasing some Spanx to hold it in while I workout - but that brand is quite expensive. I was just wondering if anyone else has had this problem and if you've found a particularly good brand of compression gear or a good store to find some. I'm a size 18/20.