Health anxiety is fairly common. Have a bit myself. Even when we realize the probability is very low, we still worry and hyper focus on every little thing in our body. Mine is very manageable but if you are at the point of it being a problem in your life, then it's time to treat anxiety as a whole. IT is the cancer and heart disease you fear . . . IT Is the disease/disorder you battle. So, treating it can lesson your worries about health concerns and let you get back to living. Talk to your doctor about this as it relates to Anxiety to being the steps to getting treatment for it. good luck
Oh the dear health anxiety. It's lovely isn't it? I had to go on an SSRI to help me forget my heart anxiety and it helped. :)