I was given 14 days of 500mg for pneumonia. On day 5 I went through my house and got rid of everthing that is unique to me. I searched for my life insurance policy "just in case". I called my dr and said I was feeling horrible but I couln't describe it well and I thought it was the pn. They just said it could take weeks before I felt better. By day 10 I was feeling much better physically but still very depressed. Since I normally exercise a lot, I figured some excersize might lighten my mood. I didn't push at all, but now on day 23 my body is racked with pain. I have tendenitis in my left elbow. Shooting pains in my left shoulder, severe, almost unbearable sciatica both shooting pains and numbness running down my leg and overall joint pain from head to toe. My dr told me to take 4-6x the normal dose of ibuprofen. Today I found a new doctor.