Stomachache, cramps and hard stools seem to suggest an issue of constipation more than C. Difficile infection. Try increasing your water and fibre intake as well as exercise more, these simple measures may help.
C. Difficile infection, although related to prior use of antibiotics, mostly presents with fever or diarrhoea. Effective treatment includes stopping unnecessary antibiotics and adequate hydration. Such simple measures may be good enough for recovery. Presence of any trace of C. Difficile in stools needs no additional treatment once a person recovers from his or her symptoms.
As such, testing for C. Difficile may be more an academic exercise unless there is an indication for more aggressive treatment from persistent or worsening symptoms.
Dr Quan
