Hi. I am a 16 year old female and seen to be having problems with either my brain, sensory system, or simply anxiety. I have recently been having the feeling that my brain may not be in sync with my body. I have feelings of light-headedness and a sort of floating feeling. I feel like I am not getting enough oxygen sometimes but try to push past that with a few deep breaths. There have also been times where my vision has been affected by these episodes . I do NOT do any kind of drug or partake in alcohol use. I have a history of major depression but never of anxiety. I like to think of myself as a pretty layed back person in general. Can someone try and explain to me why I may be feeling this way