Collodial Silver Die Off or Side Effect from inferior brand?

Been on the candida diet for awhile, was also on Iodine for awhile but didn't see much results. Homeopathic doctor suggested collodial silver. One of the brands she suggested was sovereign silver. Been taking that. (For candida and a prostate infection). Though after a few days I became really fatigued. Been dealing with an energy/fatigue problem for years but this has been bad for a few days. Like don't even want to walk around or work. Slept 11 hours last night and still want to crash back out. Thought I was tired from work but this is something more. Don't have much else in the way of symptoms so I'm wondering if it's a side effect from the CS?
Read some people get healing die off and some get fatigued from CS. Is there a way to tell the difference?

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