I tend to get swelling in my forearms as well. It varies - some days are worse then others but there is always some swelling - I can tell this by how tight my shirt sleeves are, etc. I aslo find when I fly my arm swells quite a bit. I also get bruising, and don't remember running into or hitting anything.

Hope your arms are feeling better. I hate ringing stuff out...I have now come to beleive things that say 'hand wash' can handle the washing machine or I just don't buy them!