I have had severe health anxiety of about 6 months now. My biggest worry at the moment is a blood clot in the leg. I have been to the doctor and had at least 6 ultrasounds on both legs, as pain goes from one leg one week to the other. I do have a cyst behind one knee, which explains the one, even though I keep thinking that changes to a clot. I have no history of clotting, no family history, no recent surgeries, no birth control, non smoker, basically have no real reason to believe I would have one. Help me get over this! I dont want to keep going to the doc and getting ultrasounds, I am sure they think I am crazy. Anyone else had this worry?