I dont why i m getting these tauts.

Hello doctor, I'm seeing lot of negativity in me, when I wish for others I always pray positive I always feel no one should face any harm. But when it comes to me when I see or hear story of something bad I often think what if im in that situation what if I have to face that bad situation which I always wanted to avoid Also I often get tauts that I might end life soon.. I'm a high spirited jovial always motivated person but during the sleep hours in the night I often get all these tauts what if I die these tauts went to an extreme that I don't want to sleep anymore during nights I started avoiding to sleep & I hit the bed early hours of the day 3am , 4am etc but during the day I'll be very active with all positive energy how to avoid all the negative tauts.