I woke up this morning got out of bed too quickly and whoosh - dizziness hit. Sat on the bed for a while and did my BP and pulse. Pulse went up by over 30 on standing. Looking back at the weekend I realised I had not been as good as I should have been about adding salt to food, or drinking each hour, and so the orthostatic problems hit. It's been really hot here too. Are mornings the main time you get dizzy and has anyone any new advice how to stop it?