I am a diabetic and also have congestive heart failure. The doctor game me coumadin and lovenox because my levels were 1.6 and they wanted it to get to 2. They released me to go home saying to give my self injections and to take pills for coumodin, plus I had to get my blood tested every two days. Two days after release I got my blood tested and it was 5 so they told me to stop taking the medicne. I did and checked my blood again two days later and it was 10. I am getting really bad head aches. My doctor ordered me Vitamin K at the drug store but I am afraid to go out in the snow and get it because I feel so bad. What should I do.