I am a 24 years old male, and I've never had any problem with my heart or lungs before. Since almost a year ago, I've being filling short sensations of shortness of breath and at the same time the need to have a bowel movement. I also feel anxiety and little dizziness like I am going to pass out. I thought I had hypertension, but my BP is always around 130/70. This happened to me when I am working ( landscape, construction), driving, lying down. I don't know what should I do. I am afraid that can be some serius ill.