When my daughter, Rosanne, was 12 years old she developed SLE. That was in 1982.
In the early days my daughter would comment, before she went off to school, that her fingers felt stiff. We put this down to 'growing pains', but a few weeks later I noticed she had some difficulty in climbing into the car. I then found that her knees and ankles were swollen, so I immediately put her to bed and called our G.P.