Most drs can't prescribe sub. It's takes a special license to prescribe it so don't let that bother you.
I have a solution to two questions. First go to Austin Pain Associates, ask for appt with dr. Silberberg. He will help you with the right meds as well as withdrawal.
Second, call Restore fx. Tell them you have questions about suboxone . The doctor there is indeed licensed for this very strong pain med.
Be persistent but polite. I think these two groups can help you.
First of all it's okay to be scared, and that's how probably 95% of the people that find this forum feel initially. The withdrawals suck but you can manage them and still survive through them, especially as young as you are. I would talk honestly to your doctor and let him know how you're feeling and tell him you want to get off of the pills and find an alternative to manage your migraines. Discuss a plan with him and take the first step to having a life of sobriety. You are still very young and have a long full life full of potential and possibilities if you stop now. Calm down, relax, and know that there are others on pills / medication much worse and much stronger and that are coming off of it. You can do this if you really want to, and from reading you post it sounds like you do. Come up with a plan and do it. Stick to it. I have faith that you can change your life and make a turnaround and then help others, that are scared, to find a new life.
Opana is a highly potent synthetic morphine. It is horrible feeling, but wlll not kill you from withdraw, if you are healthy otherwise. The thing that concerns me most about your post is that you started taking them for emotional pain, that crosses the line from dependent to addict. Opana is fairly Long-acting, so withdrawal can take some time. Is your doctor willing to help you with a taper or switch you to a faster acting opiate, you mentioned he is not very helpful? Suboxone requires a special class and fees to be allowed to prescribe it. Now that emotional pain is involved, I suggest you see an addiction counselor. I would recommend an NA meeting as well. How is your health, diet, and migraines right now? Your withdrawal symptoms sound normal, what have you been doing to try and get off opiates? Acupuncture, vitamin therapy, exercise, anything?