have you tried taking the aspirin but not the fish oil? How about cutting the aspirin to get
an even smaller dose?
Have your blood tested for thickness at your doctor's office. That would be the only way to know how thick your blood is currently. My dad goes in to have his blood drawn every 3 months to check the thickness. He is on Coumadin to thin his blood due to an irregular heartbeat. An irregular heartbeat can increase the risk of a blood clot.