Similar experience ... ..But i would start coughing and have an hour long episode of clear phlem at night
went to Hua Hin/Bangkok hospita l saw a doctor .. weight great blood pressure perfect . ordered a CT scan which showed mucus / congestion in left lung he then wanted me to go for a MRI $1100 ???? I spent about $350 dollars that day and wasted 6 hours ... I decided that A.. this was a power $$$ grab and I know the mucos is comming from post nasal ..
went to Hua Hin government hospital .. signed in . saw a doctor within 10 mins ,,sent me down for a chest xray, see an ENT Doctor (ears clean / clear )
back up to see the 1st doctor ,, she concluded.. that it's a reaction to the dirty filthy air.. especilly from all the farms in the area constantly burning the fields at night, gave me a script for an Antihistamine and a nasal spray .. sent me down to a physical therapist to show me how to cough to get rid of phlem and breathing exercises to open up the airway ...... issue done.. no more episodes ! total bill for all doctors and xray/scripts was $65 and in and out in 3 hours Special note**** if you are not fluent in speaking Thai ,, bring someone with you . ( have my wife help with that )
the doctors all spoke english . the nurses/staff did not . Also note . the doctors at the Government hospital. spoke to me.. and explained everything
I give them a solid 10 out of 10