Claustrophobia and anxiety disorder.

Hello Sir/Madam, From few years I am suffering from a issue which is very difficult to express but as I started surfing in net I discovered that it is Clautrophobia. Whenever I am in over crowded places or in lift or theatre or in train or in the bus I feel that I cannot escape from that place and I feel very dizzy and have fear of no escape which is extreme, my heart starts pounding hard and also suffer from breathing and I feel as if I will never have any exit point and will die. This has disturbed my daily life a lot, I avoid travelling from buses etc., My back head and neck is also paining a lot. I am losing confidence, I get panic a lot when such things happen. I start sweating and feels as if I am going to die when I go in such places. I think this is claustrophobia and anxiety disorder. I need help, I am newly married and my relationship is hampering a lot due to this issue. Please help, If possible need to visit you for this issue. I want my normal life back.