Buzzing in ears and couldnt move while sleeping.What could this be?

This morning while i was sleeping there was a buzzing sound in my ear and i couldn't move.. Its weird because i was actually awake but lying down with my eyes closed.I thought it was a fly by my ear and my boyfriend asked me what was wrong because i was shaking. I told him there was a fly by my ear..i was talking but my bf said tht he didnt hear me say anything. I said i told u there was a fly by my ear he said baby u didnt say anything.. Then it happened again and i couldnt move and i started to shake again and was calling my bfs name and the whole time he was not responding as if he really couldn't hear me but he did feel me shaking. He was facing the other way so he couldn't see my mouth moving.. Soon as i got out of it i asked him if he felt me shaking and calling his name..he said yeah but didnt hear me calling his name.. It was terrifying. What could this be?