Chest pain in middle nd back.

Chest pain in middle and opposite of back, Heavy breathing and weakness in full chest, plz help, complete lockdown in this area, i treated a pulmonologist 2 months ago, he gave me medicine namely, 1)Azithral 500 2) Digihaler FB200,3) flubloc nasal spray,4)cilapam-ls , 5) Clonil-10,6) Hifenac-th8 . He said 2,4,5 continued always. Yesterday I feel huge pain as a result left side of the chest nd left hand not working,then i went to a nearby medical nd they gave me 2 injection, i also done ECG, test shows normal also done chest x-ray, test shows normal, I am a huge smoker before, now i good bye smoke ,plzz plzz these medicine are not available here, Plz give me alternative of these medicine nd extra if required, there is no pulmonologist .