hi im 16 yrs old, short and slim, and ive been having a problem with mornings for the past few years. My systems started when i was about 12, i woke up one morning feeling very nauseas and vomiting till about noon, and after that i was fine. ever since then there would be nights where i would wake up in the middle of the night feeling nauseas and shaky. Ever since then when i wake up i feel very nauseas and blacked out vision when i get up, my heart starts poundind and my head throbs, i get soo dizzy i have to stop what im doing and hold on to something till it goes away and my vision comes back. it happens every morning and im starting to get worried, about the blacked out vision cause i know definetly not normal.