I understand your concern and I assure you there is nothing to feel anxious about.
From your symptom analysis and correlating it with the history that have gathered from you I feel that you are experiencing upper airway resistance syndrome.
This is based on international guidelines and you will require intranasal steroids for this.
The choice of steroids can be Mometasone or Fluticasone and they should be taken twice a day into each nostril for a period of 6 to 8 weeks.
These are prescription medications and currently you can take Claritin one tablet once daily till you get a scheduled appointment other with your primary care physician or an allergic.
As a home remedy you can do warm salt water gargling three or four times a day before food.
Avoid moving around in chill weather and excursions of ambient temperature inside the house.
Your physician might also prescribe medication called Montelukast 10 milligrams taken once daily in the evening for a period of 6 to 8 weeks and this particular drug is very good in keeping the allergy under control on prolonged usage.
May I suggest you discuss these possibilities with your primary care physician and get yourself appropriately evaluated and managed please.
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