I guess I'll start with the short version leading up to what happened. I went to sleep around 7:30pm and woke up a few minutes before 10:00pm. When I woke up it felt like I was out of breath, and if I had to describe it there was a thick mucous layer stopping me from inhaling; my lungs would just wouldn't inflate at all while trying to breathe. I eventually felt whatever if was loosen after probably a minute, felt like an eternity, of coughing as hard as possible and trying to take deep breaths. Afterward, my entire throat was sore from coughing and my lungs felt sore while trying to inhale when the obstruction was there. I'm terrified that this will happen again when nobody else is home, and if it happens again at all I will go to a hospital. Any insight as to what this could be would be really appreciated. I've been doing some poking around where similar things happened to others and here is what I've found and the likelihood it's one of these:
Sleep Apnea: I don't think this is the case as this is the first time I've ever experienced this and I haven't been a loud snorer since I was younger. If I had to classify it I would say obstructive SA as it felt like a physical blockage in my trachea.
Acid Reflux: I'm not sure how this would cause the physical obstruction feeling, but for the past two days and not long before I laid down I had been eating food that could upset my stomach, specifically on Sunday when I woke up in the middle of the night to diarrhea. I've also woken up numerous times in the past to what I think is aspirating stomach acid.
Asthma: I was clinically diagnosed with asthma when I was younger, though since middle school it has been pretty much completely absent, and when I was diagnosed probably used my inhaler <5 times in total.
Panic Attack/Anxiety: I don't know how stress levels build up to a panic attack or whatnot, but I have the next two days off so there was no immediate stress, but this entire year and next semester will be a very stressful time that I have been dreading.
That's about all I was able to find for possible causes and I'm not sure what to think. If it happens again I will call an ambulance, but in a practical sense I cannot afford a visit to the doctor until I'm a full time student in the fall and have health care. I'd really appreciated any insight anyone can give me, and I'll try to provide any information that can be helpful and check up on the thread frequently. Thanks.