sob and chest pain

Thank you for your comment I really appreciate it. In the begininng of my symptoms I had cardiac eval and found no heart problems I do have mitral valve prolapse and neurocardiogenic syncope which is believed to be caused from the ad. Dr said problem is not from mitral valve. It feels like low fluid volume because symptoms are similiar when all thes mess started. Been to Dr several times and they seem to say well I really dont know. (Isnt that nice) Yes Im on cortef 30 mg daily I take 4 times a day. plus Florinef .1mg Also on thyroid meds. Has any one out there had chest pain and shortnes of breath from the low fluid volume before placed on Florinef?