Write back then, so I know if it worked.
Thank you so much !!!. I will definitely try it out.
You might even be able to resolve this with hypnosis since you seem to have a good understanding of the cause and are motivated to get a solution. At one time, I had a fear of flying but one hypnosis session was all it took to end that. They gave me a mantra to repeat a few times half an hour before my plane trips, then once in a while during the flight. It was "I relax quickly and easily, living life to the fullest, relaxing day by day."
It was just a light hypnosis and I didn't cluck like a chicken or do anything similar that hypnosis shows get people in an audience to do. I remember thinking after the session that it was so simple that I could have done it myself, just positive thinking and focusing.
The nerve pressure is likely nothing. Maybe it is an irritation response from the pillow.
So your problem is anxiety and worrying (for nothing it seems since you are just 23?) over getting a heart attack and bad health. If you have no reason to believe your heart or health is bad then you are likely ok, however you should talk it over with doc to get his opinion since you can't be diagnosed from here.
Anxiety can happen to anyone for various reasons, and in your case it seems situational due to loneliness and you said company helped reduce it when you went home. Medication is for people with such strong anxiety that there is no other solution, but you might not be needing that since you haven't even seen doc yet. You could try counselling too, but it is important to get that health fear out of your head so if a counselor can't resolve it then see a doctor for sure.