Breathing issue, doctor advised inhaler.

Dear respected doctors, I am being short of breath from last 5 days,earlier i had mild throat pain, mucus(from 4, 5 months,as i am allergic so its often),doc suggested xray and cbc, crp, electrolyts serum & covid test. All were normal just HB-15.5, MCh and MCHC was bit increased, covid found -ve. Spo2, pulse,bp all nrml.Nd gave few antiallergic& vtm.D3, betadin gargl & steam. After 5day course i still had shortness of breath,then doc suggedted fortcast inhaler200 and montelukast. M taking 2 times 2 puffs but still after evng i am feeling hard to breath. Spo2 3 times checkd which was 99 or 100.  Please suggest is this asthma or due to my allergies as i am allergic to dust, very cool winds,fumes, tadka during cooking. Being a house wife cant ignore these works. 🙏