I agree with the previous answer. Did he pay you time-and-a-half your regular rate for the 37 hours of overtime you worked? If not, you should consult with an employment attorney or the U.S. Department of Labor.
I agree with Kevin, but will add that under almost any possibly applicable statute of limitations, it would be too late to file a harassment claim five years after the last incident of harassment. Depending on the facts, however, there could be other possible claims, so it's still worthwhile to contact an employment lawyer in your state to discuss this further.