I'm sorry you have Fibro. I have it and its changed my entire life. Maybe take him along to one of your Doctor appointments? It helped my husband understand that Fibro is indeed real and how it can and will screw up day to day living.
I have tried all the "meds" for it , never got any relief.. I depend on meditation and yoga and of course diet is a huge when battling Fibro.
Welcome to PC
Feel free to PM me anytime.