question: I am a 76 year old woman who began to lose weight for no reason . I lost my appetite but have gotten it back now to some degree but not my weight.I have a lot of test and they only showed that I was lacking in magnesium so I am taking this now , so far I am still low in it I have lumps under my skin on my legs and arms which I was told by one Dr. it is nothing to worry about , Having researched this I have found out it could indeed be cancer. I will be seeing an oncologist in a couple weeks , I have had cancer before and radation but it did not advance any more.I look in the face very thin and my eyes look very weak , I do not feel well at all ,Could this weight loss and lumps mean there is a cancer in my body? thank you