I was erm in the bedroom with my DP last night and suddenly I felt a build up of pressure in my head. Not painful but not pleasant - it was like I had taken poppers. My mouth went numb and I couldn't move my lips properly for perhaps a minute. Please don't laugh and say it was an orgasm because I know what they feel like and this wasn't sexual at all. Today my head feels woolly but ok. Googling didn't help - it listed everything from brain tumours and strokes to migraines. Has this happenned to anyone else please and does anyone know what this was and if I should be concerned?