I'm 23yrs old 5'5" and my weight fluctuates between 8.5 st and 9 st. I'm never ill normally, I have a good appetite as I work outdoors. Recently I've been feeling out of breath, very tired and lost my appetite almost completely. It's been happening for about two weeks. I'm lacking any energy at all. I've been eating lots of fruit and veg to try perk myself up. I'm eating to literally try and get myself going. I'm never hungry. It's so strange. My breathing is really short and it constantly feels like someone's sat on my chest. I had a chest problem a few years ago where my breathing was similar but the doctors said they couldn't find out what was wrong and they hoped it would just pass. It eased but I've never breathed normally again. This tine it's worse though. I don't know what's wrong and my local doctors are always fully booked and don't want to go in if it'll pass.