You contradict yourself when you say the mind can create, and then say that mind cannot create disease.
um, no. the mind can create feelings, not diseases. there is a difference.
you are using the logical fallacy of the argument from ignorance (since i can't figure out how x happens, it must be false).
let's take a hypothetical: a newborn baby is born and the mother dies in childbirth- no maternal influence. the baby then gets a fever; a spinal tap is performed; pus comes out. a bacteria starts to grow. the child gets sicker. antibiotics are started. the child still is sick. cultures show that the doctors need to use a different antibiotic. the medication is changed and the baby gets better. a repeat spinal tap (generally not done) shows clear, sterile fluid. infection=disease.
pain is real too. when someone gets a cut, it hurts. the doctor puts lidocaine into the wound to anesthetize it and the stitches don't hurt. yes, the mind can help alleviate pain, but so can medications.
do you wash your hands? if so, why? that would be contrary to your whole world view. do you brush your teeth? the bacteria in your mouth cause the cavities, but you don't believe in that. do you bathe? bacteria on your skin contribute to body odor, but they don't exist, right?
would you get surgery with non-sterile instruments and no anesthesia? of course, you would never consent to surgery since they can't prove to you that your excrutiating belly pain is from your infected appendix rupturing.
please stop writing everything in bold text.