Arthritis and heartburn are also linked to obesity. (For more, see " Just Say No") Obviously, consult your doctor first before you decide that you don't need to take a drug.
You can take your story in to a publisher after completion if you feel it would make for a potential bestseller (consult the NaNoWriMo site for more tips on how to do this first).
Its not unusual to experience mild muscle soreness in the first 1-2 weeks, but if you have worsening muscle soreness or pain, its important to consult your doctor.