If you’ve woken up in the morning and suddenly felt congested, you may be wondering whether you’re sick. Congestion is a common symptom of many different illnesses and can be uncomfortable. Learn about what causes sudden congestion and when to seek medical care for congestion treatment. Visit AFC Urgent Care North Bergen for same-day illness diagnosis & treatment. Schedule Your Visit What Causes Congestion? Congestion is a very common symptom. Having a stuffy nose ...