The evening gas you are experiencing is likely a side effect of the aspirin and atorvastatin combination, which can cause mild stomach irritation. To manage this, try taking this medication immediately after your evening meal with plenty of water, and avoid lying down right after. Please do not reduce your medication dosages on your own. Even with normal test results, your blood thinners (like prasugrel) and cholesterol medications are vital for keeping your heart healthy and preventing clots. I highly recommend discussing this with your cardiologist; they can safely evaluate if a dosage adjustment is possible or prescribe a mild antacid to ease your discomfort.