This is going to be really hard to explain....

Ok, I don't even know if you could classify this is a dream, but a few times I got this very very vague feeling that I was being overwhelmed by some imaginary amount. It isn't like a normal dream, but more of a feeling....I do recall seeing a yellow cube-like structure, but it is very vague.

So anyways, I feel like I'm taking littles bits of something...and then I take a huge one, and I feel overwhelmed and very stressed/uncomfortable...

I think it causes me to wake up...I haven't had this feeling in a long time and I probably only had it a few times in my life.

Can anyone relate to this feeling/experience, or know what it is?