So today I changed the date on a rx for adderall. It was prescribed to me by my doctor but I forgot to get it filled in the 3 month time period. My dr always post dates them so I didn't see an issue with changing the date. When I went to pick up the rx the lady at walgreens told me she believed that it had been altered then showed me a fax she's sending to my dr complete with a photo. It was not until I got home and googled it did I realize I had just committed a felony. I'm not sure what to do. Do I go see my dr in the morning and explain to him since the rx was post dated I didn't think it was a problem? I don't have a drug issue and have never been in trouble at all. I'm afraid my life is ruined. If I come clean to him is he required to have me arrested? The script sat in my car for 3 months and I forgot I had it. Can I say it wasn't me? Should I just be honest and beg for mercy? Turn myself in to the police? I'm scared.