I am sure you are distressed by your thought of getting sick and from your write up i guess that it has been there since quite long. This form of anxiety
disorder wherein one is not able to control his thoughts which are recurrent and where patient himself feels most of the times that the thoughts are more or less baseless, it is called as obsessive compulsive disorder
. But please understand, before we can zero-in on the diagnosis, it will always be advisable to have yourself examined by a mental health professional. There are plenty of drugs like fluoxetine
, fluozemine, risperidone
and many others which can help you along with behavioural therapy.
Hope I am able to solve your concerns. Have a nice day.