 [ Symptoms ] feeling of a knot on left side after eating just below rib cage a cat scan was conducted and reflected no abnormalties in my abdomin it happens after i eat and lingers on for hours no pain at all just a weird feeling of a knotpressure on my left side right next tobelow rib cage i can do anything i want physicallywork outs etc doctor thinks it may be trapped gas anti gas prodcuts have no real effect i am scheduled for colonoscopy in 1 month would that help determine what this might be any suggestions as to what it could be  thank you [ Disease ] anemia does not usually cause fever and chills some common symptoms of anemia include fatigue dizziness shortness of breath rapid heart rate and pale skin here is a link to an article that discusses anemia symptoms in detail <link> take care