I'm 51, 5'5'', and weigh 236 lbs.; I take levothyroxine for thyroid problems. My total cholesterol is 261, and LDL is at 195 as of last week. I seem to have caught a bad cold. My question is, is it normal to have bad pain mostly in left side of chest and radiates into middle of shoulder blades and also all the way down the left arm just when I cough real hard? It goes away quickly and doesn't happen every time I cough, but hurts when it does. My cough is deep into chest and is only productive first thing in the morning. At this time, it produces brownish looking phlegm.