I am so sorry you are going through such a difficult time right now, especially having a small child. I have found myself crying in the middle of the night alone (my partner had moved out because of my frequent anxiety attacks and inability to sleep), awoken by horrible migraines, pains all over etc, until I was finally diagnosed. Not knowing was far worse then getting diagnosed because there is finally something I can be proactive about.
Obviously, We all have been dealt with curveballs to our lives ( I call it lemons), Nobody wants THIS as their future, yet here we are. In my life (51 yrs old) I have dealt with plenty of curveballs and the Best way to overcome challenges is by Facing them head on. I know how you feel about wanting your old life back? I have to fight the temptation to pass by my old workplace when I go for my monthly Dr visit's. I miss work, I miss the adrenaline, I miss my co workers.... BUT wishing and crying about something that's not going to change - WE cannot undo Fibromyalgia ( not yet)! So starting to think into the direction of everything that you are missing because...... It may just set you up for depressing time. Yet, You can learn to live with Fibromyalgiait!
Not only that, but you can also teach your daughter to become a sensitive, nurturing child. My advice Join a support group,
Review AA 12 Steps ( adapt them to your need) and above all live one day at a time and don't sweat the small stuff!