Since a year I feel some sudden tension while sitting or any other situation like walking, studying etc. At that very moment I feel like my ears are jammed and also experienced that my jaws and teeth are whizzing and zipping. Some pinching in throat is also there. I feel out of blue at that time and feel very tensed which finally lead some pressure in my head region and some raising in my heart beats also. I feel lethargic and shaky while walking. Sometimes, my inner thighs feel some pain also. Please suggest some way through which I can get out of it since it is hampering my daily life now. Which department I should consult to get rid of it.