How long will my arm take to heal , what kinds of ways to heal it are recommended?

2 weeks ago, my bike tire got caught in a street car track and I went down hard landing on my left arm. I went into ER the next day , they xrayed my radial and ulnar bones but not the humerus. My arm is still in pain, I've tried soaking in epsom, accupuncture, a sling, arnica, a chinese linament, resting it. I haven't been able to work as I do massage therapy and the arm cant take that level of pressure. Any chance the humerus may be fractured and how long is the healing process if not?