Am 4 weeks today, confirmed earlier this week. Have been feeling very hungover on and off for a week, but today I've also been feeling very lightheaded and nearly browned out at one point (while standing still, singing in an Ash Wednesday service - it was either get to the end of the piece, or walk out and spoil it, thankfully I didn't have to walk out...)
Is lightheadedness normal or should I be thinking about low blood pressure?