Conversation: The conversation between human and AI assistant.
[|Human|] Hi, I m an (almost) 18 year old female and last night, I woke up and my heart was beating faster than normal. When I got up and walked to the hallway, I suddenly starting hearing this really loud ringing noise that overpowered everything. I felt disoriented and dizzy as well. My vision kind of blacked out - I couldn t see anything but I was conscious. I also felt extremely nauseous. I sat down and after a couple minutes it all went away. I still feel a little out of sorts now. What s your best guess as to what happened to me..
[|AI|]  Hi, If this happens the first time, so now it is to be kept under observation, else it might be due to some nightmare, dizziness. Lightheadedness must have been due to hypotension, happened due to a sudden change of position from sleep to sitting or standing, for safe side cardiac and cerebral test can be thought. Hope I have answered your query. Let me know if I can assist you further. Take care Chat Doctor.