Well I have had strange "wiggling" and "tickling" sensations in my body (among other things) for several years now, worsening gradually along w/ the other symptoms. So that's why I mention parasitic infection, but I don't know yet what has caused the candidiasis.
In any case, whatever has caused it, how can one tell if their immune system is really good or sub-par? I mean, by the time someone begins to actually feel symptoms of low immune function, hasn't it in reality gone on for a while before that point?? How can you tell for sure.
I don't want to take ANY chances or educated guesses, as any infection of a partner or pet would just make things more worse for me in the long run than they already are.