Thank you for writing and providing a detailed description of what's happening.
I don't recognize it as any of the mental illnesses I'm familiar with.
If I understand correctly, these episodes are brief, lasting a few hours to a few days. Major mental illnesses tend to last for many months.
Have you had a general physical lately? My first thought is take a look at what you've been eating when these things happen. See if you can find any correlation between when these episodes happen and something else that's happening with your body, such as what you eat, drink, exercise. My guess is something is getting thrown off balance with your body, and that affects the mind when the internal body chemistry gets thrown off, and then the body recovers and brain works again.
A brain scan would be nice, just to make sure there isn't some spot thing going on. It probably wouldn't show anything. Unlikely a doctor would jump to that as a first thing.
You won't be committed. You're obviously coherent. You wrote a nice lengthy description and it's all coherent. People who get taken to the psychiatric care facility are people who have lost contact with reality, and they're not sure what's real and what isn't anymore, and they're deemed a potential threat to others or themselves; or they are seriously depressed people who can't even function anymore; or they've gone manic and are doing very crazy strange things and not thinking rationally anymore.
Basically if a police officer looks at you and thinks you're fine then nothing to worry about. Even if you're not fine, even if you really are acting rather weird and it's apparent you have some sort of active mental illness going on, the officer first tries to talk you into voluntarily going, suggesting it might be a good idea. (I think it's a lot less paperwork that way. They can't just arrest you because they think you're "crazy", they need to have something legal to go on.) Then that's only the first step. Then you have to be evaluated by a professional triage nurse, since police officers aren't really trained doctors. If you make it past the triage nurse, then you get interviewed by a psychiatrist doctor. Then they probably don't have room for you anyway, so even if they do determine you could benefit from their services, you might just end up on a waiting list.
Anyway, point is don't be afraid to tell people. Somewhere out there is a person who will actually understand and be able to direct you. I suggest next step is to ask around, with the goal of finding someone who actually knows something or someone who would be a good person to go talk to. College is a great place to find services. You could call that number and see if they can direct you who to ask next. College may have a Student Health Service place, because they want their students to be healthy (healthy students learn better which makes the school look better). College doctors are used to the kinds of problems that college students often get. I suggest start with a general physical examination, general blood lab tests, just to make sure there isn't something going on that happens to affect the brain as a side effect.
Also definitely try the job counselor. You might get lucky and they might know someone, or they could ask around their colleagues and see if anyone has any knowledge of where to go next.
A psychiatrst doctor specializes in brain disorders. Usually depression, bipolar, and schizophrenia. It doesn't sound like any of those or someone else would have said something by now. A psychiatrist would probably first want you to get a physical and lab tests to assess your general overall health.
Might just be stress. Are you working too hard? Getting enough rest? I see you're deadly serious about your job, and being the best. That could induce a bit of stress. Any underlying fears? You could mention any underlying fears with the job counselor, or any counselor. If possible it's good to set aside half an hour each day to just relax and not think about things; stop doing things and just be. When your mind wanders just let that thought go, or write it down on a notepad, then let it go and return your focus to the present moment. Focus your mind on the present moment, and don't latch on to any thoughts. It's very healthy for the brain.
Yes having to seem like you're perfect and doing fine all on your own, that could definitely cause a lot of stress. Stress is bad, very bad. Fear is bad. Relaxing helps combat fear and stress. The stress of being even 15 minutes late to work. Stress can cause all sorts of health problems that at first appear to be other things, like heart problems, but turns out it's just runaway stress.
I'm leaning towards working on relaxing as a brain exercise. You could research Mindfulness, Mindfulness Mediatation, join a Therapeutic Yoga class, Qi-Gong, Tai-Chi are mindfulness motion exercises.
Waking up in bed and doing nothing might be a sign the brain needs more of that. Maybe that dark slime in brain is brain's way of being overwhelmed and shutting down to save itself. Need a balanced life. Overwork yourself or expect too much out of yourself and you'll just burn out and really crash hard. It's common among college students who push themselves too hard. Your college may have counselors and doctors and, oh, I just remembered you're a distance learning student. Well in that case if they can't see you directly, I guess over the phone is the next best thing.
In summary my suggestion is focus on the stress in your life, and the fears you have, and see if some Mindfulness brain exercises can help with that. And also make sure you eat healthy, get adequate sleep, and a general physical exam once a year. All counselors probably very familiar with stress induced disorders.
Hope that helps. Best wishes at school and work and boyfriend.