Thanks for your input, folks. Cardiologist ordered nuclear stress test, scheduled for this Monday, June 24, with follow up appt July 8. (Unless they find something that depends immediate attention I would think.) Also said I could go jogging and do light weight lifting in the meantime.

To answer some of the questions posted above, I've been on a statin for about 5 years, and I walk close to an hour a day. I don't recall what my cholesterol numbers were previously, but over 200 total and enough to be put on atorvastatin. Last week's number were:

non-HDL cholesterol: 86 mg
Triglyceride: 67
LDL cholesterol: 73 mg
HDL cholesterol: 99 mg
Cholesterol: 184 mg