Yes you certainly do have some heart disease. I am confused with the part of the report which says "proximal LAD is calcified" because it doesn't say to what extent.
The other blockages are still below the level for intervention using stents or bypass.
As to further course of treatment, I would have a blood cholesterol test. You need to get your blood pressure under control, and eat healthy foods. Avoid emotional stress as much as possible, and exercise regularly, such as daily walks for at least 20 mins.
From what your report says, this certainly doesn't seem to explain your Angina, but I wouldn't expect it to if you was diagnosed with unstable angina.