First off I am very sorry to hear you were diagnosed with RDS. Are you going to a specialty center for it? I have been reading a lot about it because it seems to come from sensitization... I was diagnosed with Central Sensitization Syndrome around February, I was looking into Ketamine and specifically the coma to "reset" the system.
I can't even imagine the pain you are in.
I would not stop any medication until you have spoken with your doctor, and they told you how to stop it, or if they want you to try the higher dose.
My story with Savella is very different. I had the symptoms of MS.. noise/light sensitivity (extreme), touch sensitivity, all over pain, knots, joint pain...
It really helped me after taking it for 2 weeks. Although my symptoms were just a minor headache and occasional nausea if I didn't eat enough prior to taking it.
I am on 50MG X 2, and I really notice a difference if I forget to take it. Noise will hurt all of a sudden, etc.
To add- this drug had had very positive reviews as far as I have read, it may be worth researching a bit more. Also, some side effects do go away in a few weeks or subside dramatically.. ...