Thanks for the replies, very interesting. linenup: No I haven't had any stool examinations, or any antigen/PCR testing.
Yea I also have the deep internal coldness at times. I find it gets worse when I don't eat enough calories, particularly fat. It's like a low-grade fever that breaks and starts over from time to time. Plant sterols help to temporarily alleviate it for me. The melatonin also seems to help for it.
More than one type of parasite out of control? Crazy.. That'd just complicate things even further ;) For a while I thought it was gluten intolerance I had.
Another interesting thing. I went on basically a fruitarian diet a while back, including most apples, grapes, melons, some bananas. After a couple weeks in, my white tongue and any trace of bad breath was gone and bowel movements were great. However the annoying "bulge" in my upper left abdomen seemed to get worse, and so did my mental state (probably due to the lack of fat).
One thing is for sure, my body has the toughest time digesting starches. Bananas, cashews, grains, potatoes, yams, etc.