In brief about your cholesterol level :Normal value (total 120-220 mg/dl ) 289 in your case.
(30-70 ) in medical terms this is called as good cholesterol , 100 , high bot good for health.
( 60-170 ) 173 , bad cholesterol, in your case high ( upper limit) risky .
Non HDL (1-180 ) 189 HIGH.
Ratio(0-5.1 ) normal in your case.
46 years old , not other risks factor , regular exercises .Low blood pressure may be due to exercise ( 110/ 70 mm of Hg ).If very low than a cause of concern.
i.e. lipid lowering agent.
My thoughts are;
You should be worried but not too much. Your cholesterol is not that high to be very worried . You may easily get back to normal range with these measures;
1 High fiber diet, green leafy vegetables, fresh fruits ( not canned ) .
2 Cut down the processed food, white bread, doughnuts, white sugar , eggs , avocados , pizza, burger , hot dogs should be completely avoided.
3 However you mentioned that , do regular exercise . A 40 minute physical activities everyday like morning or evening walk or hard exercise ( you are already doing , so very good).
4 Avoid over eating , drinks with caffeine .
5 Tension and anxiety
are other factors responsible for high cholesterol
I retest my patients after 3-6 months and advise medicine , if still find high level of cholesterol .
Hope I have answered your questions. Further any question I will reply in follow up.