I also sympathize with you. I have a huge blood clot fear after a couple people I know had some. I am constantly checking my legs. I feel like they constantly hurt (Probably from me focusing on them). Any little pain makes me think that this is my last moment alive. Sometimes if I think about it too much I start to get short of breath and feel pains in my chest (from anxiety) and of course I think 'oh well, this is it, the clot moved to my lungs'. I hope it gets better, I really do, because this is an awful way to live. I feel like a walking time bomb.