Hi Altheia and welcome! I agree w/Wendy... it takes a while for the meds to take hold.. I have not been on Cymbalta, so cannot speak from experience w/that particula med, but they generally don't take full effect right away...
I have had FM for a few yrs (at least officially DX'd for a few) but know now that I have had it longer. Yesterday it was rainy and I could not function. Today the sun is shining and altho I have pain, it's a different pain...
take care and give yourself some time to get used to your DX.