Hey there,
It sounds like you need a new doctor ! Did you doctor ever explain to you that like meds your body can develop a resistance or tolerance to it so it doesnt work as well. How long have you had it ? I understand how you feel in that your afraid to confide in your doctor for fear he wont believe you or help you ! I have had a few pain specialists like this. However I have always been able to confide and trust in my ortho who is the doctor that diagnosed my RSD. If you have 1 doctor that you can trust talk to him/her and try to get there help in finding someone who can help you.I wish I could do more for you. Please know that I am here if you need to talk . Maybe others will have some additional advice for you as well. Take care my friend.

Kimberly