I have had gastric bypass ( open RNY) eleven years ago. I am a special education teacher who retired early on disability three years ago due to fibromyalgia, degenerative disc disease, severe back and hip pain. I had spinal fusion of L4-L5 in 2007. Now, I am worried about my loss of appetite- I have lost 110 lbs in the last fourteen months. I am often nauseous, and bruise easily. I have a spot on my left forearm in which I bleed easily through the top of my skin. Is this a sign of cancer?