GERD associated with SOB? Asthma right?

On 4th of this month, I awakened from sleep with sudden onset of shortness of breath and diarrhoea. I consulted a general physician and because I had an association with covid positive patient, he suggested Doxycycline and other dietary supplements presuming it is covid. But I was tested negative and HRCTC also showed no abnormalities. Anyway, I completed the course for 10 days. A week ago, I resumed taking prime9g ( a dietery supplement soft gel capsule which that doctor prescribed) in the evening for two days and the third day I had grape fruit juice. I had loose stools those days which subsided but since then this SOB is increasing and night awakening is becoming common. Yesterday morning, I consulted a doctor here on practo who suggested panD, sucrafil o and mucaine gel. After taking those, yesterday was fine but since today morning SOB increased. What do I do now? I have no fever or cough. This isn't asthma right?