Can someone give me a reality check?

I know I have it made...my life is great - a good job, a great husband, a beautiful house, two cute cats. However, my anxiety about my health is taking over my life. My doctor wants me to visit a cardiologist because of a rapid heartbeat, especially after eating. I woke up with an irritated and bright red eye (not pink eye, though)...possibly from my contacts and wearing them too long. I have been dealing with a cold for about 2 weeks...it just won't go away, and now I have a sore throat to go along with it. I also have a mole under my arm that has been changing a bit...although I chalk it up to being in my armpit and getting larger from friction (excellent visual, I know). I am totally wrapped up in my anxiety about this all that I can hardly get out of my pj's. Can someone please give me a reality check? You know, someone telling me to stop my ninnying and get on with my life? I'm only 25 and feel like I'm going on 80 because of how I am acting. Yeck. Thanks for your help.