I had a very bad cough starting in November 2014. It fully ended early January. I was on an inhaler and 2 different steroids. Sense then I have had mild chest pains that can last a long time, shakiness, especially after exercise, dizziness, lightheaded. I also, before the cough had heart palpitations that would speed my heart up and would last for about an hr. They would tire me out and were a bit painful. I now get them much more frequently, only it only lasts up to a few seconds.