I am a 24 year old female. I have this odd problem for the last 4 months. I joined a rock climbing group on december 2014 and did some heavy workout during that period of one month. From then onwards I have a feeling that I cannot hear properly with my left ear. It seems that my left ear is partially closed. Moreover I can continuously hear my heartbeat with my left ear. I have been having palpitations and increased pulse of more than 100. I consulted an m. D and an ent specialist. I took several tests like blood r. E, urine r. E, ecg, t3, t4, tsh, mri and hearing assessment test and all my reports are normal par say. The ent specialist I consulted said it might be migraine and so I have also been taking medications for migraine for the past 10 days but without any relief. Please help.