had a CT for hernia and scab captured this

hello All I hope your well today
1st ct scan on a hernia check (which hernia is good) showed this CT scan on 07/13/2022 it captured chest area

SCOUT CHEST RADIOGRAPH: There is a large peripherally calcified air-filled structure within the left lower lobe of the lung which
may represent a cyst or pneumatocele, as well as a questionable additional smaller cyst more superiorly within the left lung.

Ct scan showed this August 8th 2022 just a lung ct
LUNGS: In the left lower lobe posterior segment is a 6.6 x 5.2 cm cyst. There is surrounding atelectatic lung. Linear opacities
are in the lingula, anterior right upper lobe and middle lobe. Diffuse, mild bronchial wall thickening is present.

Now in march 2024 this the findings LUNGS: Mild left basilar bronchiectasis. There is a 6.5 cm bulla in the left lung base. Unchanged scarring in the anterior right
upper lobe and lingula. No pleural effusion

IMPRESSION:
1. 6.5 cm thin wall bulla in the left lung base appears unchanged from 08/05/2022. No adjacent lung disease.

So i am just well worried they dont prescribe meds I have zero breathing issues never felt better not even a cold for 2 years so hmm Doctor says oh we monitor it but can this turn to cancer worried as Im a worrier doctor says we monitor it every 6 months

Thanks for reading

Worried mary