ehh.. hmm i did experience this but it was after the sv** so it was obviously from the heaving all night long. I remember kind of getting that feeling too before i had the sv* so now i do every once and a while get that feelingand i get panicky cuz i think i am going to v** again but then i dont so.. i really dunno..
Sorry im not much help .. i really dont know what causes it but i hope you feel better soon!
\"Dance like no one is watching, Love like you will never be hurt, Sing like no one is listening, Live like heaven on earth!\" Mark Twain