Hello,
There is a connecting track (known as Eustachian tube) between the
nasopharynx & middle ear through which there is equalization of pressure.
Any obstruction to this Eustachian tube, secondary to an upper
respiratory tract infection,
sinusitis,
cold & congestion, can lead to stuffiness/ blocking sensation by causing un-equalisation of pressure between the nasopharynx & middle ear.
The symptoms get more pronounced during descent in an aeroplane, as mentioned in your post.
Clinical examination is important for diagnosis, so I will advise you to consult your Doctor/
ENT specialist for a proper clinical examination.
Eustachian tube function tests would be helpful to detect any pathological cause for your symptoms. There is no need to worry, you will be fine.
Hope I have answered your query. Let me know if I can assist you further.
Take care
Regards,
Dr Polash Sannigrahi, General & Family Physician