Are brain tumours common? I find that I get a lot of headaches. If I have a bad sleep I may also wake up with one.

There are several. types of headaches and they can be quite debilitating. Please start by seeing your doctor and possibly a mental health professional to help you cope w/the headaches. There are many techniques you can learn to lessen or stop them. Peace and good health. Make sure to see your doc to rule out other medical conditions.