Sometimes I feel suffocation somewhere. From few days, I have been having a feeling of suffocation. Now I can't travel by bus because I feel suffocation. It started happening now. In past, I had travelled a lot by bus. Also yesterday I went to hospital to meet someone, it was closed hospital and I again felt suffocated. There were many other persons in hospital, they were okay, but I had suffocation. Today also I went to hospital and had same feeling. Please help me in this.