Rheumatoid Arthritis Support Group
Rheumatoid arthritis is a chronic, inflammatory, multisystem, autoimmune disorder. It is a disabling and painful condition which can lead to substantial loss of mobility due to pain and joint destruction. The disease is also systemic in that it often also affects many extra-articular tissues throughout the body including the skin, blood vessels, heart, lungs, and...

I believe the "official" definition of a flare up is when pretty much ALL or MOST of your joints are painful, not just one. Flares can include fever and general flu-like feelings. It feels like you felt prior to getting established on a medication combo that works.
I usually experience a full flare up only when my meds stop working. When just one joint, e.g. wrists aer hurting but everything else is ok...I usually see an orthopedic surgeon who x-rays that joint to see what's going on. Sometimes. one particular joint is damages beyond the capabilities of medication and requires surgical intervention.
Andrea, I am so sorry about your flares. I really hope they don't come your way very often.
and apologies for my apparent lack of spelling skills - just re-read my post ! thanks for your replies.
I dito what she said lol
especially the crying