i understand exaclty what you are going thru....the breathing problem can be scary but again you have to convince yourself that nothing is physically worng with you and move beyond it. After a while, it eases up and then i tend to feel really fatigued and sleepy. The chest pains vary with the level of anxiety....the beta blockers really hep me so I generally get more of a funny, scratchy, uncomfortable feeling in the chest area. THis is normally followed by some acid reflux which I hate.
Bear with it, little by little you will learn to manage it.

All the best