Due to Kal Sarpa Dosha, there are always negative thoughts in the mind, thinking of oneself as a failure, thoughts of suicide, strife and tension in married life, obstacles in child bearing, obstacles and troubles in love relationships, ups and downs  in whole life, these are the symptoms of Kala Sarpa Dosha. When all the planets come between Rahu and Ketu in a person’s birth chart, Kala Sarpa Dosha occurs. You should do the appropriate scriptural remedy for this dosha.