What does it feel like to have major respiratory conditions such as sleep apnea, asthma, or any other respiratory conditions?

Sleep Apnea: Some symptoms of sleep apnea include: loud and chronic snoring choking, snorting, or gasping during sleep long pauses in breathing daytime sleepiness, no matter how much time you spend in bed waking up with a dry mouth or sore throat morning headaches restless or fitful sleep insomnia or nighttime awakenings going to the bathroom frequently during the night waking up feeling out of breath.

Depends: This would obviously be related the the individual patient's perceptions. But generally speaking, one feels short of breath, is working harder to get a full breath, often feels very anxious, is scared and depending on the severity of the attack and were the treatment is going, the patient might be sleepy, lethargic or worse as the attack proceeds if the meds are not working.