Have you done a parasite cleanse recently? Many here have had parasites. Apparantly mercury and candida overgrowth make people run down and very succeptible to parasites. I advise everyone new here to start with a one month parasite cleanse that uses at least 3 herbs- wormwood, black walnut green hull extract, and cloves. I do a cleanse at least once a year. You could search the forum for more information about these. The site humaworm.com has excellent information about parasites. They also sell a parasite cleanse with many herbs. You can use a more basic cleanse though, as long as it has all of the 3 fundamental herbs.