Hello and welcome!
You have been given some great advice above, so I will just add that I am glad that you have found us...and include some helpful links and book recommendations to get you started while to talk to your doctor about treatment options such as medication and/or therapy. These self-help tools are essential!
Health Anxiety - A Self Help Guide:
http://www.nhs.uk/conditions/hypochondria/pages/introduction.aspx
Helping health Anxiety
http://www.cci.health.wa.gov.au/resources/infopax.cfm?Info_id=53
Health Anxiety- The Super Scanner
http://www.get.gg/docs/SuperScanner.pdf
Books for overcoming Health Anxiety:
http://www.amazon.com/Overcoming-Health-Anxiety-David-Veale/dp/1845298241
http://www.amazon.com/Treating-Health-Anxiety-Cognitive-Behavioral-Approach/dp/1572309989
They take awhile to get through and yes, there is a lot of material, but it is worth the time and effort to do so! Post with us anytime for support. We understand and care.:)
Scaredy Cat