With the mixed-connective-tissue you would have something indicated in your bloodwork, as it's an autoimmune disorder. The good thing is that it's very rare. With fibro., nothing will be reflected in bloodwork because there is no inflammation involved. None of us really know what's wrong so you aren't alone with that feeling. Most of us have been to numerous doctors, over years and years, and still don't have answers.
They only know that those with fibro process pain differently than those without. Also, there are many overlapping conditions if you have fibro (sleep issues, chemical sensitivities, brain fog...) and we don't know why this happens either. I'm praying that this year will bring us more answers and closer to something that will really work in treating our pain.
Take care of yourself and I wish you a great year as well. :-)
Thank you for the info. re Mayo Clinics website for info on MCTD. It was interesting. I guess I still will never really know exactly what is wrong other than believing in the Fibro diagnosis. While I feel like certain areas are swollen at times, they never look swollen. Have a good year.
http://www.mayoclinic.com/health/mixed-connective-tissue-disease/DS00675
Here is some info. regarding this from the Mayo Clinic. Hope this will help explain it to you better.
Take care of yourself.