Polymyalgia Rheumatica And GCA :: Methotrexate Experiences?

Although my symptoms began a year ago I was not diagnosed with PMR until the end of July when the RA Doctor put me on a 15 mg daily dose of Prednisone. Within a week I felt like a totally different person. I thought I had my life back. In Sept my blood work showed my inflammatory markers had dropped to normal range. In three months the Dr wanted me to reduce to a 12.5 daily dose which I did. It only took about 4 days and all my symptoms were back full blown. She told me to go back to the 15 for a month and then try again. Again the same results and I went back to 15 for another month then dropped again. Same results. Only this time the RA Dr doesn't want me to increase the Prednisone but take pain meds to help me adjust to the lower dose. I ask if I can at least try lowering the dose slower she agrees so I go to 14 mg for two weeks then to 13 two weeks then 12.5 then 11 then 10.  I want off the Prednisone as well having had many of the lovely side affects that come with taking it so even though my pain is growing I try to stick with it. I see my primary Dr for pain management. My blood work is showing elevated C reactive protein but my RA Dr seems to think it's an acceptable level.  I start PT, and do a pain education class. Slowly the flu symptoms come back as well many nights sometimes all day. I break down many a morning trying to get up to start the day and often cry myself to sleep at night. I go back to my Primary Dr to see how to handle all the pain. She had put me on Cymbalta in January and I thought it helped some so she increased that. I don't like taking so much pain meds but I have to now to get through the days and nights. She does blood work again and my C Reactive Protein has doubled. I get a call the next day that she has talked with my RA Dr and I should go back up to 15mg a day till my apptmt with the RA Dr which was today. The thing is the 15mg is not subduing all the pain like it did before so here I am 7 months later back to where I started only I now have pain in more places than before. Today the RA Dr says she still wonders if I could actually have RA even though I am not manifesting the swelling in the joints that accompanies that. She suggests adding Methotrexate but I dont like adding yet another drug with its own set of side affects to the steroids until I research it.  I have to increase the steroids now greater than the 15mg a day so I can have a life! I would like to hear any input/experience on the Methotrexate and just on the steroid use for PMR in general. I sometimes wonder if I was reduced too quickly !!