I drove today so I could go see the doctor. Yesterday I developed a curious rash on the left side of my chest during afternoon commute. It wasn't there when I left work, and my chest was all red on one side when I got home. My left arm has also been aching for several days. Long story short, it seems that I have the shingles. The lab test will take a week to confirm, but the doctor seemed very certain of the diagnosis.

The good news is that I caught it early and the doc says I can continue riding and exercising. Hopefully the medication will clear it up soon as I've heard some horror stories about severe cases.