I often go on a diet, fast for a long time, and sometimes when I am anorexic, I often get blue lines on my arms, chest, and legs. I don't know if it's a tendon or a vein. There are a few times when my legs are swollen or swollen again, like being pregnant for a while. It grew in a short time and it's been 2 years now, not shrinking. I had a cheekbone surgery because of an accident. Only after that time did I feel a change, my heart rate was also irregular. Please advise me what is the problem of blue lines on my arms, chest, legs and how to get rid of it?