If you are as honest and sincere when talking to your doctor as you were posting your issue with complete strangers, then she should be open to the idea. She might not write you the recommendation, but the worst she could do is say no. At the very least she could use you as a lab rat to see how marijuana helps your condition. Good doctors are constantly looking for new research into new drugs so if she is a good doctor she should be happy to have you as her patient! Good luck!