Hello dear...
The symptoms mentioned by you suggest that you might be having Otitic
Barotrauma.
It occurs as a result of retraction of tympanic membrane(ear drum) due to in-equalization of pressure in the middle ear.
There is a tube (known as Eustachian Tube) between middle ear &
nasopharynx which helps to maintain equalization of pressure.
When the tube does not function properly (such as blockage due to
common cold) the pressure differences(specially when the aircraft descends) force the
eardrum to retract, causing pain.
Management includes:
1. Antihistamines to provide symptomatic relief
2. Analgesics to relieve pain
3. Nasal decongestants to relieve obstruction of the tube.
It is a self limiting condition & usually gets resolved on its own
If symptoms still persist, it will be better to
consult a ENT Specialist.
There is no need to worry...you will be fine.
Wish you a good health & speedy recovery.
Thanks & Take care.