Why do I have wheezing and coughing?

[Rednan]

I’ve read some older posts about a but I haven’t seen a response that answered it.  Last December, I had pneumonia.  They believe I had bronchitis and aspirated during a coughing fit, which caused the complications.  The pneumonia cough lingered a few weeks and then I began to have a different type of cough.  It can be brought on by drinking ice water and I’ll cough until loose mucous is expelled.  Also, mucous will accumulate in the throat when I’m sleeping until I wake up choking.  Water isn’t the only time, but it will cause it every time.  I am a female, 5’7”, weigh 145, take no medications or herbal supplements.  eat foods low in fat and consume hardly any alcohol.  I’ve seen an ENT who says, “You have a lot of mucous in your throat.”  I’ve tried prescription antacids.  They made no difference.  I recently had an endoscopy and the GI doctor said I have a very small hiatal hernia but he doesn’t think that’s causing this problem.  I’m at a loss but tired of this cough - which occurs every day, several times.