so this is a new pregnancy symptom for me, feeling very foggy and spacey, feeling unbalanced and with a pulse in my left ear like i have a seashell being pulsed off and on my head! hearing fading in and out with the pulsing. is this a normal increased blood volume thing? Ive had a google but there seem to be a wide range of answers from totally normal to high blood pressure to low blood pressure to anaemia to diabetes!