Diffuse joint pain but negative blood tests

I have pain in my joints that seems to go in cycles.  Started seeing a rhumatologist but no diagnosis yet.  I have had an eleveated CRP and Sed rate for the the entire time testing has been going on.  All the common auto immune and infectious stuff is negative.  I have alternating results with liver functions and thyroid function (sometimes WNL, sometimes not),  Enlarged spleen without a reason.  I alo have unrelated back issues (spondylolisthesis) which seems worse during these episodes.  I have had 2 burst packs of prenisone and felt 100% better for a couple of days, then right back to constant pain.   What could this be?  I am beginning to feel like a head case!

[Sidhartha]

Try to avoid anything that aggrevates the pain. In some people tea, cofee aggravates so avoid them. Take a homeopathic medicine called Arnica-200 after consulting homeopathic doctor. It should help.

[babynurse1961]

Is it the caffiene that aggravate the pain?  I don't drink coffee or tea, but i am a major Diet Dr pepper fan....I am embarrassed to say how much I drink per day.  I can try to switch to water...it will be hard...I LOVE by soda  :)