Hello I wake up at night feeling like I am struggling to breath like I need to gasp for air. My heart is thumping in my chest and I find I need to gulp lots of water as well. I've tried going to my doctor about this and keep getting told it's panic attacks but I have suffered with them in the past and this is very different. I also find it mostly happens when I have a hangover? If I sleep with lots of pillows propping me up I find this helps and also if I avoid sleeping on my back. Please can someone help me as it's really starting to get me down.