Does anyone here have any experience of the same thing? I had multiple pulmonary embolus following achilles surgery and was started in Marevan warfarin. Within a few days I started to feel better and am now on my fifth week of treatment, breathing better, sleeping better and generally feeling more well than I have for the last 2 years or so. I have been told that I have familial 'sticky blood' and wonder whether this has been making me feel sluggish. I would like to know whether this is a normal thing or whether I am just strange! ## Well, in a way it can, so that really isn't strange. It's not that your blood is sticky and making you feel sluggish in a direct sense, but if you tend to have thicker blood that clots easily, it tends to raise your blood pressure and make y...