Anyone at BC in a crisis always has someone they can talk to, such as the PEC at university counseling (call health services at 617-552-3225 and ask to talk to the PEC) or at the National Suicide Prevention Hotline: 1-800-273-8255. I cannot give concrete, specific info about medical problems; I am a library wall, and librarians are duty-bound to provide resources, not medical advice. You can search our catalog for “suicide” and find a lot of material on the subject. Regarding sin, for Catholic doctrine, search with the subject heading “Bioethics — Religious aspects Catholic Church,” which covers a number of different areas such as euthanasia and suicide.