Mormonism is legalism, pure and simple. Keeping commandments, oaths and covenants in order to earn your way to eternal glory. What is Christ to Mormons except someone who was raised so that humans would not suffer eternal death - yet Jesus didn't pay the ultimate price and He didn't free you - no, he only made it possible for you to continue your self-aggrandizement of working toward eternal glory and godhood - - it makes me physically ill.
Your words, not mine. He paid the ultimate price and is the only one who can give me the Ok to return to the presence of God. He also said, "In my Father's house there are many mansions". Details to follow after you're room temperature.
The physical illness part is completely a condition of your own making.