Hi there and thank you for the question. I am a Registered Nurse and will be happy to help you today.
From what you have told me, I feel like you could be having some associated anxiety with the fact that you are having difficulty with the stuffy nose right now. If your brain was not getting the amount of oxygen it needed, you would not be able to communicate this well with me on this website as you would most likely be experiencing disorientation, difficulty with talking, even difficulty walking and syncope (fainting or losing consciousness). I'm glad you have had yourself checked out and I think this may be self-limiting. However, if you start to experience any of the symptoms I have mentioned it might be prudent to follow up with your Dr.