I have been suffering from breathing difficulty for the past 2 months. My chest x ray was clear. I have been having sore throat also. No fever. Temperature is Normal. Iam obese. My.BMI is 34. How to reduce my breathing difficulty. My spo2 ranges are from 96 to 99. My grandmother has asthma problem. Currently using Seroflo 250 inhaler amd Ezicas Nasal spray. I have also attached the PFT report taken 1 year before. Iam using Peakflow meter and the reading is always above 500.