Sleepless as never before

Don't know but since I have returned from Delhi ,there have been not a single night when i had a good sleep for even 6 hours .This inspite of exahustive day time and no sleep in between. Intially I thought its just another change because of place, may be because of yoga but as the the time is passing by and things are still the same this question comes in my mind what exactly making me to do so. I can nither forget nor forgive myself for whatever went and still going in my life. Never found as insensitive before...find myself sleeping even with open eyes.