Talk to Pediatrician on Breathing Problem

Mera beta 13 sal ka hy usko aj 28 days hogye fever tha n cough uska covid test krwaya but all ok PHR cough n fever thk hogya laken 7 days sy breathing issue hy jb khana khata zaida hojta almost jb sota nh hota jagta All day rehta nebulizer 4 hour bad Dy rhy x-ray sai hy covid nh hy CBC sai hy pulmonologist 2 ko dkhya but they said asthma isue nh hy PHR Kya issue hoga Jo yh horha hy plz someone help me ENT ko b dkhya usny b Kaha all ok then breathing issue q hy