Sounds Help, guinea pig is making a really weird noise?

She?s done it like 5 times in the past few minutes. She purrs when I pet her and doesn?t seem to be chocking or anything but the sound is really concerning me even though she seems fine. Any ideas of what it is?
It almost sounds like when peanut butter is stuck to the roof of your mouth or something. I?m trying to figure out how to upload a video.