As a healer I too went through a lot of detoxification
It would seem that I had a viral attack but I had a deep knowingness of what had happened. There was unfinished business of "rage, un-shed tears and unspoken words of anger and huge amounts of helplessness". All this manifested itself as fever, throat pain, body ache and loss of inner strength with helplessness.
Related to the metaphysical causes of an illness I am sharing a link for all.
any feelings of "a major obligation" done.
to get entangled in the healing process or energies.
healing is done.