I am allergic to pollution. I feel shortness of breath when come go in pollution. Also o feel shortness of breath when weather is cloudy or it rain outside. I don't know reason of it. Shortness of breath lasts for 10 to 15 minutes when I come back at home from pollution. And another thing is that my blood pressure always normal like 110/70 or 120/80. But when I feel severe shortness of breath my blood pressure raise to 150/90. Also my heartbeat increase to 110 to 120. Last time it happened before 3 months. Doctor said it was viral infection. I want to know that if I feel shortness of breath due to viral chest infection does it increase blood pressure. When my infection gone then my blood pressure come to normal.