I'm sorry to read about your experiences and challenges. I wrote numerous responses on the Anxiety board with regard to this dreadful condition - it might be helpful to you to check the thread out.
With regard to the stuffy nose and sinuses, there is no possible way to determine what the cause of the condition is without a physical examination and, perhaps, blood tests. Whether one is caused by the other, vice versa, or purely coincidence cannot be determined in this manner. What CAN be addressed on a written forum is approaching anxiety.
You mentioned that you had begun to focus on childhood issues for a couple of months and believed yourself to be 90% better, and that's wonderful that you felt that. But, childhood issues are not resolved in 3-4 months, particularly if they are a tramatic source of anxiety. Learning and practicing management techniques requires time, patience, and a whole lot of focus.
It might be prudent to consider the options of having a physical exam, blood labs, and consulting a counseling therapist (NOT a psychiatrist, but a licensed professional clinical social worker, LCSW). Some physical responses to anxiety can be crippling, and anxiety is NOT rooted in a physical/medical condition, generally speaking. Anxiety causes conditions which increase anxiety which exacerbates the conditions, and so forth. Anxiety and stress kills.........from high blood pressure to sleep apnea to eating disorders to strokes, anxiety is a catalyst for many, many conditions and cannot be simply wished away, pilled away, cleansed away, protocoled away, or supplemented away. Certainly, these things can help the physical aspects, but they will not "cure" the root causes of the anxiety. Only YOU can do that through practice, processing, and patience.
Good luck to you.........