Is It Normal to Feel Vibrating, Gurgling, or Bubbling from my Breast After a Submuscular Breast Augmentation?

What you are describing is quite commonly described after breast surgery.  The sensation of air trapped in the tissues is also commonly described. However, any significant increase in swelling/size would be of concern.

 Best wishes.

It’s not unusual for patients to have unusual sensations
in their breasts following breast augmentation surgery. In many cases, this is
related to residual air and fluid that’s present within the breast implant
pocket. Under these circumstances, movement of the implant within the pocket
can cause the sensation of squeaking, gurgling, and bubbling.

This sensation tends to improve as fluid and air resorb.
In addition, formation of a capsule around the implant also helps to minimize
this phenomena. In the majority of cases resolution occurs in one to two weeks.

If you’re concerned about this phenomena, it’s important to have a discussion with your plastic
surgeon. Your surgeon should be able to alleviate your anxiety regarding this
issue. 

This sensation is normal after sub muscular augmentation.  Not all patients experience, but it is not in any way dangerous.  It will go away over a period of months.