Thanks for providing more information.
If you have contracted diarrhea after that incident(direct contact with dead cat) then it may be possible that you have contracted Gastroenteritis.
And if you have bloody diarrhea then a clinical exam by your primary doctor should be considered to rule out other potential differential diagnosis like Intestinal parasitic infection,Bacterial Gastroenteritis,Colitis,Inflammatory bowel disease.
Imodium should be avoided in case of bloody diarrhea.
Excessive wiping can cause anal fissure(tear in lining of anus) resulting in bleeding.
So consult your doctor for further management.
For fever and pain abdomen you should take OTC Motrin.
Hydrate yourself with plenty of water and Oral rehydration solution.
Persistent bleeding can cause anemia,fatigue,lethargy.
Hope this helps.
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