I m 13, I weigh 145 LBS, I am 5 ft 6. I am always sick, there hasn t gone one month I haven t gotten sick at least 3 times. I usually get pain on the left side of my stomach, bad headaches, trouble walking straight, and I ve been getting bruises on my arms lately, and my temperature is abnormally 97.3. Leukemia runs in my family...