Let me assure you that there are numerous things you can do on your own
In some cases the improvement can be dramatic.
Certainly it takes some discipline, which could be in short supply for many sufferers, as some of the symptoms seem to be so overwhelming, that may affect their motivation.
Please post some more details about your fibromyalgia, what supplements
you take, other approaches, meds, fitness, typical diet , brief medical history and why you suspect Sjögren’s Syndrome.
Hang in there. I can offer you many suggestions that hopefully will make a difference.
Looking forward to your reply.