I'm trying to decide if there may be a better pain med then the Opana ER I'm currently taking. I have severe sweatting, stomach pain, gas, constipation, dizziness, most of which I can tolerate with the exception of the sweatting. This may seem odd to some, but its so bad that my hair will be dripping sweat and my clothes saturated. I've tried patches and use hydro for break-thru pain. Appreciate any help. Thank you.