Thanks to HCM
I can understand your concern 
throat pain with cough is usually 
upper respiratory infection like 
pharyngitis here you may have viral as well as bacterial infection . 
I would like to ask you is there any sputum from throat 
it would be cause for choking feeling, as well as gastritis also cause tightness of chest 
plz take 
erythromycin 5oomg for 3 days along with 
analgesic like aceclo plus tab, 2 times daily 
if not subside go for investigations like CBP,ESR.CHEST X RAY ,upper gi endoscopy if need 
plz consult you family doctor with reports or HCM
use lozenges like 
strepsils and vicks for temperory relief 
stomach pain will subside by taking ta, pan 40 bbf .
don't worry it will subside .ok