I don't want to sound mean, but full custody is very hard to get, and it's usually even harder for a man to get. While I understand that you may feel you've done nothing that should have gotten him full custody, a judge felt you did. At the same time, though, you should be allowed to see your son, unless you did something really horrible to him.
All you can do is ask your son's father if he will allow you to see and spend time with your son, or represent yourself in court and try to get the court order changed. If you're going to get the order changed, you will need proof that whatever the judge used to determine your ex should get full custody has changed, and you will need to be prepared for a long fight.
at 7:47 AM on Jun. 9, 2011