Test Results..What do they mean! I am confused.

My test results...8/14/09

TC ..150      TriG....  554   HDL...23     LDL...cannot be measured but in the past were >100.   A1C...  5.5    Glucose....  90

5ft 7in tall..   215lbs.   42yrs old.  male    Family history of high cholesterol.

Meds...simvastatin ...40mg        Niaspan ..1500mg    Fish oil ... 1200mg  Aspirin ..325mg

My trigs were a lot lower on Lipitor and 1000mg of Niaspan...Trig level averaged 289.

Now that my health insurance put me on simvastatin and I increased my Niaspan to 1500mg, my Trig are 554?  What?  Why?

Is it the statin?  I did have BLT's and choc pie the night before test. Would that matter?

Also, I was told statins decrease any buildup in the aerteries so if my LDL is low, you should be good right?

Should I demand a stress test or some other test to check for any buildup in my aerteries? 

Can someone please explain my actual risk?  My doctor is way too vauge.

Thanks,

Ron