Hello.I've got some kind of breathing problems and I can't determine why it's happening.I've been feeling shortness of breath for 2 months. I felt this way before when I was anxious and depressed and at those times it was for a specific period of time.But nowadays I'm having it all the time and it feels so bad, often I feel like gasping for air.I am not worried about anything,but when it happens I feel restless like I'm anxious.I also have allergic rhinitis and it's been mor than three months. I take montelukast and a nasal spray for this. My nasal area feels congested. I can hardly take a deep breath. I am overwhelmed with this. I don't if anxiety is causing this or this is causing anxiety.