I think we all have experienced that! I just lean on God and take one day at a time. I keep my mind busy thinking about other things, positive things, and focus on something and the pain fades in the background some. I love doing genealogy and that takes my mind off of me.
We all need a good cry every once in a while and I do my crying in the shower, too. That takes a load off for me. But the biggest thing for me is to stay optimistic about life and living. Golly, if I told myself I couldn't do something, I really wouldn't be able to do it. But I tell myself I can, and so far I CAN! I make a concerted effort not to dwell on how I feel. I do not take an "inventory" of what hurts anymore. All that did was make me more miserable so I don't do that...at least not often.
No, you are not having a nervous breakdown. You hurt. That isn't the way we planned on living our lives but it sure could be heaps worse. So, for me I try to be thankful for all the things I can do. This way, I don't feel guilty. After all, no one can do everything...even healthy people. Just do the best you can, keep a smile on your face and you will draw family and friends to you like a light draws moths! Life can be good with fibro.
Sherrine