I m currently taking 300mg of Pregablin twice per day, 50mg Topirmate twice per day, 1,0000mg Paracetamol 4 times daily, 1gm Nabilone twice daily, 60mg Duloxetine twice per day, & a 100mg Amitriptyline per day. I have complex Regional Pain Syndrome & I m still in a large amount of pain & lots of swelling in my left limbs. What can I do?