I gave blood yesterday afternoon for the first time in ages (iron usually too low). The two previous times I've managed to donated I've fainted pretty much straight after. Yesterday I got super hot but didn't pass out.
I was soo tired last night and fell asleep really early then woke late feeling absolutely dreadful. Banging headache, super fatigued and really nauseous. Just dreadful. Fell asleep and am only just awake again. Could that jist be from giving blood?!