Brief Answer:
The first one is definitely related
Detailed Answer:
Dear patient,
From what I see, you live a very healthy life. Your diet, physical activity and BMI are very normal, and the fact that you don't have any other change in CBC means that you are not suffering from any kind of anemia.
As you have read, ferritin is raised in inflammatory conditions, and contact sports can create bruises which are associated with raised ferritin level.
Plus you have osteoarthritis and joints problems which are always associated with high ferritin.
I would take another ferritin test later, without having a bruise.
But mostly, I would not worry about this high level, because of osteoarthritis.
MAnoku ENi M.D.