Hello All!
After reading several threads here in recent months I just decided to join, and this is my first post.
I am mostly healthy, with a history that includes a fair amount of running, lots of acid reflux, some early stages of coronary artery disease, a little bit of dysphagia (a swallow study says my swallowing muscles are weak), and a little bit of asthma.
For over a year now I've been having a crackling sound when I breathe, and this concerns, perplexes, and worries me.
At first I just started noticing at night that I would often hear a little pop or crackle when I breathed in. The crackling got louder and more frequent early this year. It varies up and down some from day to day and over the course of a day, getting worse a few hours before bed and subsiding a good deal a while after I get up, but the crackling has been noticeable for some part of almost every day for nearly a year now. The sound is audible from my mouth, and I've created several recordings of it by holding my phone up to my mouth. In recent months I've also often had the feeling of frequently needing to clear my throat, and am sometimes spitting out phlegm. My asthma has never been very bad, usually only flaring when I run in the cold or in polluted air. But lately I'm having more wheezing, especially at night, with no obvious trigger.
When I first looked up crackling breathing online, I was expecting to find that it was just an asthma symptom I hadn't been familiar with yet. Instead, the medical information online consistently says crackles cannot be caused by asthma but can be caused by several progressive, fatal lung diseases.
So this has sent me on a medical wild goose chase. I've recorded my crackles at night (when they are by far loudest) and played them for a nurse and two doctors. The nurse identified them as "fine crackles" made by the lungs, but the doctors have been noncommittal. When they've listened to my lungs with the stethoscope, they haven't heard them, but it's hard to say whether this is because 1) the crackles aren't in the lungs; or, 2) the crackles are almost always quiet during the day, and I never have doctor appointments in the middle of the night! [Edit:] However, just the morning after I posted this, I was having particularly bad crackles while still in bed, so I tried to listen for the crackles myself with a stethoscope. I found a spot where I could hear them clearly, at the base of my left lung, with just the same sound pattern I hear from my mouth. They sound very much like the examples of "fine crackles" on medical videos teaching doctors and nurses how to distinguish different types of lung sounds, except that my crackles are not as numerous as those in the examples.
I've seen a lung specialist a few times and he performed pulmonary function tests and CT scan and these came up normal. So my lung specialist suggested the cause was somehow digestive. Hence I've seen a gastroenterologist about the crackles and he found it completely wild to think that my gastro system could create crackles that went with my breathing. He told me the problem had to be with my lungs. So then I got a high res CT scan of my lungs, and this again came up normal. The radiologist didn't say there couldn't be any lung disease beginning, but did say there could not be "significant" lung disease present.
So here I sit tonight listening to a sort of "snap, crackle, pop" sound coming out of my mouth with each breath right now, still wondering, "What's going on?"
One of my few potentially useful observations about the crackles, which I'm still actively testing, is that they _may_ be worse on days when I'm eating dairy, fatty foods, and such, which makes me wonder whether certain foods might thicken the mucus in my lungs more, leading to more crackles; or whether these foods are just triggering acid reflux which is somehow causing the crackling itself or getting aspirated into my lungs; or whether something else is going on altogether.
I'm still young, as far as I'm concerned (at the beginning of my 50s), and mostly in good health, so I'm hoping for a good number of healthy years of life to come. And so this crackling worries me and probably will until I understand what's causing it. If it is the start of some pernicious disease, I want to know that as soon as possible so I can begin treating the condition _before_ it does significant damage. That way I could have a much brighter prognosis.
But how in the world do I figure this one out?!
The complexity of it seems so strange, and I don't know what it all means and what steps to take next to figure things out and/or make them better.
D