Why is Tiger Woods having sleepless nights?

Tiger Woods has confessed that his recent split with long-time girlfriend Lindsay Vonn was so terrible and tough that he didn't even sleep for three days.The American professional golfer, who had his breakup with Olympic skiing champion on the death anniversary of his father, said that from 3-5 May the days have been very hard and brutal on him that he haven't slept, the BBC reported.Woods further explained that his recent breakup obviously affected him, as always in life he had to deal with circumstances outside the ropes, but he had always tried to focus and get into his little world to do the best he possibly can.