My situation is quite complicated. I am in the process of making a diagnosis - but everything is so long, that is why I started to search and analyze on my own. Because of Covid, I have a problem getting to a pulmonologist.
In general, what is happening with me has a bit of a substitute for MND, but I am not entirely sure - global muscle atrophy and weakness, fasciculations visible on the skin, and EMG, which was found in a few months ago, but ultimately test was classified as "normal". Another visit to the neurologist and examination in about a month.
Unfortunately, for a few weeks my condition began to deteriorate - my torso muscles weakened, I started having problems with maintaining balance, and for a few days I have had problems with breathing. I am quite reasonable and I realize that it may be psychosomatic, but I was under increased stress many times and such things did not happen - shallow breathing at rest / at night (which results in quick fatigue), slight dysphagia and areophagia. Initially I thought about hypoventilation, but my saturation is ok - even at night - which rules out this phenomenon. My breathing has been for some time more abdominal than thoracic, but due to abdominal muscle weakness, it feels as if it has become blocked / incomplete. I am able to draw deep air into my chest when I force myself to do it, but when I try the same through the abdominal route, there is a problem - as if something is blocking the diaphragm (?). As a result of these problems, for a few days I wake up half conscious, after getting out of bed I have a dizziness that lasts to several hours.
I am not writing here to diagnose myself - I am just analyzing things and want to understand what is happening and in general it looks like breathing and possibly swallowing problems are starting to get worse as a result of the weakening/atrophy of the trunk muscles. I suspect that in ALS / MND the degradation in this area proceeds over a certain period of time rather than overnight, and the above-mentioned "the muscles work, or they don't" refers to the final phase of this process.