Yes, its possible, but that doesn't make it any less dangerous.
If conventional treatment is not getting the results you want, perhaps you should try some alternatives (starting with a second opinion
)? Counseling to reduce stress? Acupuncture
(yes, it works)? Herbs? A nutritionist (no disrespect to your doctor, but most MDs have only rudimentary nutrition education)? A Naturopath?
Keep looking, there is an answer. Good luck!