Symptoms include, but are not limited to, constitutional symtpoms such as fever, malaise, weight loss, dizziness & weakness, and more gastrointestinal symptoms such as abdomal cramps, diarrhea, blood in the stool, excessive gas, food intolerance, changes in stool patterns and color, etc.
Your physician can and should order the following stool studies:
O&P (ova & parasites)
stool wet mount (microscope examination) w/ acid-fast stain, trichrome stain
Sometimes muscle biopsy is required if trichomonas is suspected.