Itching

Hi,
I have horrible itching since I have started using psyllium husk and Bentonite of PB shakes.
I want to make sure it's not something else like indoor pollutants because I had itching before but I think I was killing parasites.
I can't find much about PB shakes causing people to itch so I'm a little worked because the person above me in my apartment complex is a meth addict and I can smell something strange and chemically sometimes!
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