For the past week I've been experiencing pain in my calf and behind the knee, due to some research I convinced myself it was a blood clot. I noticed a bit of a cramp in my calf a couple weeks ago which went away. Though the pain has started again last Sunday and continued through the week. Though the pain does go to my knee, shin, I feel it in other areas such as my arms too. I saw a doctor and they examined my leg and assured me it wouldn't be a blood clot but I didn't believe them. My lungs started feeling heavy, coughing a lot, chest tightness and I then went to think a blood clot had gone to my lungs. I just needed to go to a&e to get it checked. They did a chest xray to see if there was anything causing the cough (keeping in my mind I do have mild asthma and possibly hay fever) the xray came back okay, they measured around my calves which was also normal sized, no swelling. They did a few blood tests, they wanted to do a cannula but I was afraid of the big needle so they did a different test for blood clots with a normal needle, also a full blood count along with an eeg blood test?. They also did an EKG to check my heart, blood pressure everything was normal. Though the pain is still present and I'm scared of dying because they may of missed something. I don't know if I should go back again, I don't want to take any risks.