Having sleeping problems since more than 2 years. I can't stay asleep at night - I wake up after 1-2 hrs and unable to fall back to sleep. I used to feel sleepy in the morning at 5-6am and then get 5-6 hrs of sleep. This continued for few months. Now I can't fall asleep even at that time. Some days I sleep at 12pm some days at 2-3pm and then wake up in the evening. I feel irritable and tired throughout the day and also get frequent headaches. At night I get terrible anxiety and depressive thoughts.