Blood Thinners and side effects

My mother aged 80 was on blood thinners and cholesterol lowering drugs for last 25 or more years. 3-4 years back her cholesterol levels fell to 1/3 of the minimum suggested levels. She was also diabetic and on insulin for last 25 and more years. Her 2 arteries are completely blocked and one is working 100%. She was suggested pace maker 6-7 years back. The doctors had indicated that if pace maker...