Is there a way to know if im feeling short of breath because of anxiety or something else? i feel like my breathing is shallow and im not taking deep breaths. i think i feel short of breath when im thinking about it, but not sure at other times?

Go to MD or urgent care and get a " peak flow" that is the test done in asthmatics when they have an attack They can also order PFTs -pulmonary function testing which is the standard test for pulmonary assessment. If normal unlikely to be a lung issue. Also get an EKG which gives basic info on the heart. Check thyroid, as that can affect anxiety/metabolism and CBC. f/u/w/ MD