Itchy feet (heels) at night?

MH, I have been cleansing for several months (liver, kidney and colon) as well as eating better (vegetarian - no dairy). I even took your dewormer last month and take oregano and coconut oil daily. For the past several weeks I have had pretty strong itching of my feet - mainly the heel area at night (rarely during during the day)- after 8pm and especially while laying in bed trying to sleep. I even wake up sometimes half way through my 8 hours needing to itch my feet. Any thoughts - parasites, worms, candida, nerves ??