For the past few days I have been having a tightness in my chest and throat, and have trouble breathing.  I often have to yawn to be able to take a deep breath.  I get dizzy sometimes and feel like passing out.  Its getting to the point where I cant sleep, I cant yawn to take a deep breath, and my chest is begining to get sore.  I do not have panic attacks. I do not have asthma. My allergies hardly affect me and are very mild.  I do not have any other symptoms.  Iwas given an inhaler but it does not work and I do not smoke.
Thanks for your question on Chat Doctor. I can understand your concern. By your history and description, possibility of stress and anxiety related symptoms is more. Stress and anxiety can cause feeling of chest tightness, chest pressure, inability to take deep breath etc. You are not having allergies and not having smoking habit, so lung related diseases are less likely. So better to consult psychiatrist and get done counselling sessions. Try to identify stressor in your life and start working on its solution. You may need anxiolytic Chat Doctor.  Don't worry, you will be alright. Avoid stress and tension, be relaxed and calm. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.