Hello ! Your Pulmonary Function Test report seems fine.  It is essential to also have a look at the PFT graph before looking into just the values that you have posted . Most likely the breathlessness you have is psychogenic , due to your underlying anxiety and stress.  So kindly have those under control either with non pharmacological measures like yoga, music , meditation,etc .. or with anti - anxiety drugs.  With the proper treatment of your stress you will find your breathlessness vanishing.