Do people with giardia infection have a lot of pain?

Giardiasis: People with giardia may have frequent belching, gas when eating, and abdominal cramping in addition to diarrhea but generally do not experience "a lot of pain". Your pcp can check for giardia with a stool sample sent to a lab. Treatment is an antiprotozoal or antibiotic. If you have giardia, you may want to have your water source checked for it & treated if + use treated water for handwashing, etc.

Giardia: Abdominal is not usually severe, but can be. Giardiasis is a waterborne illness caused by Giardia parasite. Sx's – there may be no sx's or diarrhea, oily floating stool, gas, nausea, vomiting & abdominal cramps. If untreated it can cause bloody diarrhea, dehydration & weight loss. Diagnosis- via blood test for antibodies, stool antigen & checking stool for ova & parasites.