Sometimes I feel bubble and pressure in my upper abdomin. It feel like that something hit in my upper abdomin. When It happens I feel uncomfortable and breathless for a second and also feel in throat. Feel trusty also. Recently I visited with a cardiologist and all result are fine. Some dr said it was gallbladder prblm. Don't know what happened with me but plzz someone tell me what type of problem is this.?  PLZ PLZ PLZ.