I have previously been diagnosed with fibromyalgia, my main symptom being flu-like pain from head to toe and muscles that burn and feel bruised, as well a glands that ache in the absence of apparent infection. Since then I have developed an almost constant tenderness (feel bruised and burning on being pressed even lightly) in what I assume are my intercostal muscles all the way down my sides from my armpits to the last rib. Is this just part of the fibromyalgia or is it something else? Also, during the day I can keep the pain at manageable levels with OTC nsaids combined with heat pads, gentle masage and movement, but during the night of course I can't, so I am half awake for a lot of the time and wake up feeling sore and stiff. What is the best drug to take for the night?