u/Ancient_Chicken_5962

As the title reads every time I seem to take a big deep breath to fill up my diaphragm I hear my stomach gurgle is this a common thing?
And I feel like it moves as if it was being displaced

I know I’m filling up my diaphragm because I know that I’m not chest breathing and that is the source of all of my air.

If this isn’t a common issue, Perhaps this could be caused by me not properly breathing? The problem maybe the excess air is entering my esophagus and going into my stomach(where i know it is no longer usable) If that is the problem how would I go about fixing the issue? I assume it can’t be that hard of an issue to address.

I see a lot of people talking about the benefits of taking l-theanine or similar supplements my main question is, can anybody take it regardless of age, medication, dosage, and other things

Take me for example I’m 16 on 70mg vyvance would taking l-theanine be safe and a good idea?

And what would be proper dosage?