K.C.
You need to be eating better. Goodness how I wish I had your problem, hell I LOOK at a twinkie and gain 5 pounds. You should be getting more fruits & veggies. I'm taking Juice Plus and have found it to regulate my bathroom habits. You can check out the website below. I'm a distributor but it doesn't matter how you get those fruits and veggies, just get them. You can try adding a protein shake along with a healthy meal which should keep you from losing weight. You also need more fiber and make sure you drink lots and lots of water. Exercising could help too, a simple daily 30 minute walk could get things moving. Good luck, there's nothing worse then feeling "stopped up".
http://www.juiceplus.com/nsa/pages/Home.soa?site=kc77819