Lately I have been noticing a slight headache on the upper right side of my head across from my right eye. I have always gotten headaches in this spot usually, but it is like the past week this headache has been pretty constant. It's not a horrible pain, I just know that it's there and its really scaring me. Of course my brain is going to cancer. I have been working 5 days a week 10 and a half hour days and am gone 12 hours a day with the drive and honestly my sleep has not been that good and I am constantly tired. I also had to work Saturday even though I couldn't sleep the night before. I am very stressed currently. I also know that I have been not been drinking enough water. I tried to drink some more today but it's no use. It's at least around the 6th day of having this and I am terrified...