I am very skinny. I can see my pulse in my arms and of my veins bulge when I work. or just use my arms for anything. I am 57 and very good health. when I lower my arms my veins look like road maps. I ride a bicycle almost everyday. my question is when I cough is my heartbeat stopping or is just the veins stopping. how skinny am I? I am 5ft10&1/2 if I am lucky I weigh 118 lbs. this week. I went from 125 lbs. to 115. When my wife passed away in 2005. I still have not gained that 10 lbs back. I wear magnets for everything that hurts. That is another story.