Hello, I'm Dr. Deb and will do my best to help you today.
I'm sorry for your concern about misunderstanding the concept of "soaking food" but hope to reassure you that you haven't caused any issues or problems for this golden that you're looking after.
There are a lot of risk factors associated with bloat (aka Gastric dilitation volvulus) and you can do everything right and yet the patient can still bloat. I speak from personal as well as professional experience about this!
Just because your didn't feed her the way you were told to feed her for five days, doesn't mean that she's going to develop bloat.
She doesn't need to be seen by a vet either.
Now that you know how you're supposed to feed her, then you'll do so but I wouldn't worry about when you didn't. If she was going to bloat because of this, she would have done so before now.
I doubt if her breathing is related to how you're been feeding her, though. If she's not in respiratory distress, then I'd just monitor her for now.
I hope this helps to provide peace of mind. Deb