So my doctor said to go ahead and take Savella with Tramadol

I was prescribed Savella for Fibromyalgia. I looked up the drug interactions for Tramadol and Savella and it said that it was possible to get serotonin syndrome, which is very scary. I am kinda scared right now and I guess I just want to ask you all what you think. I really need to start Savella to see if it helps with this pain because everything has been getting so much worse lately.