I have experienced this, a grand total of twice, but not for 5-10 minutes (once I was in a towel and came back around vibrating on the floor which was confusing but probably was the longest one at a minute or two).
I was a chronic joint smoker and would get lightheaded standing up in general. Typically since having switched to vaping it no longer happens. Is the high otherwise pleasurable for you?
Do you have a heart/lung/blood pressure condition in general?