hi.
Thanks for your query.
Read and understood your history:
to recapitulate: Male / 42 - C/O fever with chills 15 days - cramping, 
constipation and weakness - gel like substance in poop - no money, no Insurance - 
Collectively considering the symptoms you have my thoughts are:
There is a possibility of a mass or cancer in the colon that is causing the constipation and pain in abdomen. 
Dehydration can add on the problem. 
Fever with chills is suggestive of infection wither in the colon or 
urinary tract or a close cavity infection like that of liver or so. 
I would advise you the following:
-Tests of blood to see CBC, any raised white cell count, malaria parasite, widal, liver function tests ans kidney function tests 
-Urine -routine, culture and sensitivity
-Stool test: routine, malignant cells and detailed study as to why the jelly substance is there . 
-
Ultrasonography and CT scan of the abdomen
-Colonoscopy and biopsy 
All these test can help in getting a proper diagnosis and till then 
-Get a course of an antibiotic, 
metronidazole, probiotic and symptomatic and supportive therapy.