Okay Dr....6'2....215lbs...42 year old male with different symptons.

Diagnosed Jan. 2010 with giardia after being constipated and giving stool sample. Most likely from trips to other countries. Took medication while in Brazil and felt better. By late Sept. 2010 tough constipation returns even though my eating habits are good with lots of fiber, little red meat and no sodas. Took 1 dose of medication for giardia I had left from Jan. and felt better a few days later. December problems start again and by January I have complete constipation. After starting to experience numbness in left leg, cramps throughout different parts of stomach region, odd smelling breath that comes and goes, a very noisy stomach, insominia, blurred vision that comes and goes especially at night and numb testicles I visit doctor in mid January 2011., gave stool sample, Dr. says protozan infection and gives metronidazol 500mg / 10 days.

10 days later, having muscle spasms now in different muscles in chest and stomach and only passing extremley soft stool after much work. I have been steady taken Milk of Magnesia to keep from getting too backed up.

Thoughts?