I am sorry that you are suffering from these concerning symptoms. I recommend you discuss them further with your primary care physician
. It is possible this is due to a muscle spasm in your chest wall. It is also possible it's due to some process within your lung. Abnormal air flow through your airways, such as in asthma or other inflammatory lung processes, could cause you to detect an abnormal sensation. I know of no specific conditions that cause a sensation of a bubble bursting, which is why you will need to undergo a thorough history and physical exam by your physician to help determine the cause of your symptoms.
In some instances, a cardiac arrhythmia can cause patients to experience a vibrating sensation in their chest. Some common arrhythmias include atrial fibrillation, atrial flutter, atrioventricular reciprocating tachycardia, AV nodal reentrant tachycardia, or atrial tachycardia. In addition to a history and physical, your doctor
may perform an EKG to determine if you are experiencing an arrhythmia. Based on this evaluation, you may need to undergo an echocardiogram (ultrasound
of your heart), exercise stress test, or 24 hour EKG monitoring. I recommend you discuss these possibilities with your primary care physician, as your question does not contain enough information to me to make a more definitive recommendation.