Hello thanks for asking from HCM You have anxiety that you are going to chock and in order to get rid of that anxiety you are compelled to swallow the saliva. Now you also have developed the symptoms that you have raspy voice and you are compelled to clear throat for that. Though detailed evaluation is needed to make diagnosis but these symptoms appear to be occurring due to obsessive compulsive disorder a type of anxiety disorder. I would advise you to consult a psychiatrist for proper evaluation. As you remain normal when you don t think about this so this practically rules out any anatomical or pathological cause. In such symptoms medicines like SSRIs are used in high doses. Fluoxetine, Fluvoxamine have good effects in reducing undesired behaviour and to relieve anxiety. Visit a psychiatrist for prescription of these drugs. Behaviour therapy by a psychologist and relaxation exercises also have good results in such symptoms. Thanks, hope this helps you