Fibromyalgia medication help.?

I have recently been diagnosed with Fibromyalgia. I also have Rheumatoid arthritis. I'm 32 and mother of 2. My Rheumatologist perscribed Lyrica but the insurance co. is refusing to cover it even at the Dr. written request! (Don't get me started on this one!) Is there any medication that anyone has tried that they think works on the pain? I have Darvocet but rarely take it because I need to function, besides it really doesn't help much. I take Tylenol Arthritis also. I get such terrible flareups that I can barely function. I lost my career (firefighter) because I didn't feel I could function safely and not be a liability and then had to quit my job as a server because it was too much on my joints. I could really use some advice and hear personal experience with different meds/home remedies. Thanks!