Sudden chills & nausea then feeling of needing to have bm. had bm with very little stools. stools are maybe one or two small stools. now feeling extremely tired and body feels heavy. no fever. bm less than 3 per week.

Fiber and Water: You should try to increase your intake of fiber and water. You may take a fiber laxative like Metamucil and drink enough water daily so that your urine is colorless. For the long term you may try to increase your intake of fiber foods. Consult this site for fiber foods. http://www.mayoclinic.org/healthy-lifestyle/nutrition-and-healthy-eating/in-depth/high-fiber-foods/art-20050948

Need diagnoses: You need a check up all your position and possible referral to a gastroenterologist. There can be a lot of reasons that the symptoms happen and some of them are serious and others are not. So your primary physician and consider seeing a gastrologist