Hi. I have severe shallow breathing that occurs 24/7 at rest,I can barely walk around my house; Pulmonary tests, oxygen levels, Ct lung scans, ABG blood tests are normal.. I get severe chest discomfort, heart symptoms from just mild walkking around house; cardiac tests show nothing. Severe lightheadedness with visual loss/tunnel vision, even from just moving head to look at something sometimes and when standing this happens within minnutes; brain mri show nothing. Severe swallowing problems, I have difficulty with solids, liqquids and even my own saliva; i have severe breathing issues during and after eating or drinking. Also feels like something is stuck in throat. Yet swallow tests including barium modified swallow show nothing. I also have very low voice, slurred speech, severe issues processing information and visual deficits when moving my eyes back and forth. I now have trouble writing; its all scribble. Even typing this, I have great difficulty typing, I can no longer type with two hands because I can coordinate my fingers; its like they jerk away from keyboard when I type. I tried valium n benzos and they made me worse. Many SSRI medications made me too sick from side effects. Is this FND? Nuerologists arent finding cause and are putting me in mental box or blame symptoms on my ulcerative colitis and deconditioning and general weakness. I am 34. Please help me thanks.