You have a few options. Research ways to cope (there are self-help guides available on this website) or seek the help of a professional therapist (also available on this site for a fee if you aren't able to see someone face to face)
First of all, talk to your doctor and make sure you do indeed have anxiety and are not having symptoms of any other problem. Always side on the side of caution - better safe than sorry.
If it is indeed anxiety, you still have options. You can try to control it on your own through meditation, music therapy, mental exercises, etc....or get help by seeing a licensed therapist or even consider medication if you or your doctor feels it is severe enough. No one solution is the best for everyone and only you can decide what is best for you.