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.

When a patient experiences sounds from the breasts, often it is
early in the recovery period from breast augmentation surgery.  This is normal and is a reflection of some of
the irrigation fluid that has remained in the breast pocket.  Over a short time this irrigation fluid
becomes absorbed, and the sounds go away. 
Your situation is different in that the timing is 13 months post-op.   Fluid in the breast pocket is still likely
the reason for these sounds. However, newly accumulated fluid in a breast
pocket over a year after surgery is called a delayed seroma and should be
investigated.  A breast ultrasound can
confirm the diagnosis of seroma.  Delayed
seromas are associated in the majority of cases with having textured gel
implants.  Delayed seromas can also be
associated with a rare implant-associated cancer called anaplastic large cell
lymphoma.  I would suggest following-up
with your original plastic surgeon so that he/she can evaluate you for these
new symptoms.

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.