About two months ago I fainted after eating dinner. Since then I have had shortness of breath, chronic cough, and a strange tickle that runs from my neck to my sternum. Recently I have also had difficulty swallowing and frequently feel the need to clear my throat. The symptoms are worse when I am sitting down. I have had blood tests, pulmonary tests, asthma tests, chest x-rays, 24 hour heart monitors, EKG's, an MRI, a pregnancy test, and a psychological evaluation - all came back normal. I am 31 years old and female, have never smoked, and always exercised frequently and have no known allergies. (I also have never fainted before and was well-hydrated that day.) However, since my shortness of breath started I have trouble even walking short distances without stretching and sighing for air. Now I am very frustrated as this is constricting not only my breathing but also my life. Does anyone have any advice? If so, please post here or contact me via my alternative email address: sarah_kalish***@**** - Thank you.