Hello, I purchased a product called Hurt No More which is an all natural spray on pain reliever. I used it three times every other day by spraying it on my legs prior to going for my run. On the third day my run was much harder and it was difficult to maintain a steady breathing pattern. All was well until the next morning at 4am when I woke up with extreme pain in my arm, neck, back and difficulty breathing. It wasn t chest pain , it felt like my lungs were about to explode. It hurt when I breathed...almost as if I had been swimming non stop. It hurt to talk, hurt to breath, I was cold and this went on for about 48 hours. I am wondering if this product may have been the result of my sudden illness. I am very healthy and run regularly every other day. This is the only new product that I jave incorporated into my system and I m curious as to whether it may have been related. I do not want to use the product again if it is a possibility. I am fine now. It s a fairly new product and I am unable to locate any side effect information on it.