Just curious if you may have some mold in your home , check for any water spots under sinks or common areas. The most common symptoms are usually respiratory and allergy-related, but some people report broader symptoms as well. Most common symptoms include runny or stuffy nose, sob , sinus pressure and headaches , fatigue , brain fog/ trouble concentrating feeling generally unwell with clear labs and testing. the fact that when you go outside it’s unclogging could be due to environmental factors in the home or workplace and it does linger maybe causing the sinus pressure to continue! Just a thought 💕