What Causes Swollen And Puffy Skin On Clavicle?

Swollen and/or puffy skin on clavicle -- not sore to touch -- seems to appear after maybe too much sodium;
also, the front of my neck /thyroid area seems sore when I lightly press on it. Two years ago, I had thyroid tests and all was well......there was something about my parathyroid but I forgot what was said (it's in my records somewhere) Should I get checked out again? I'm 71 - very healthy -- look and act 20 years younger. Mom is 102 and nothing's wrong with her!!!