What Next?!?

About an hour after I arrived at work, I started feeling pain in the area around my kidney. I thought I might have to leave work early in order to see a doctor, but the pain went away after a couple of hours. Even so, I went to the doctor after work. The doctor said she thought it was a kidney infection and prescribed some antibiotics. She also told me to avoid lifting weights for a week. WHAT?! OK, so I can't run, and now, I can't lift weights either?! What's next?