I have been having chest pains and shortness of breath for a week. I have had a bit of stomach pains too. I have asthma and take salbutamol when needed. I have been using it 2-3 times/day for the past week (I normally don't use it that much in a week). I also have mild depression and prior to this bought of pains 2 things happened: 1) I was getting very frustrated at not being able to find a non-prescription long-term treatment for my depression. I was stress out for a couple days about this. 2) I had a particularly dusty experience cleaning out the cat litter boxes. Those are the only triggers I can think of. I went to the doctor. He listened to my heart and lungs and heard nothing unusual. He sent me for a chest x-ray and I haven't heard back. I remain short of breath. Do symptoms of anxiety last a whole week? Suggestions?