Hi, I have headache from few days sometime its less or sometimes it is heavy. Below things could be the reason 1. I have a toothache from few days 2. I being through cervical issue but still sometimes get neck n back pain 3. Last week I traveled from delhi to chandigarh that time I was feeling pain in my neck as I was talking to my friends and both were sitting on my left side and when I reached home and tried to sleep I felt pain in my head as soon as I lay down on my pillow. Since then m having hard time sleeping as well 4. I have a habit of feeling whats going on in my head this could also be a reason 5. My tummy remain disturbed now please suggest whats causing the headache n how to remove it.