You are describing a migraine headache. For most people it starts with the aura you describe, then proceeds to an awful headache. There are natural treatments for this and medication as well. They often occur following a bout of anxiety, because they are caused by constriction of the blood vessels in the extremities and then a lot of blood flowing to the head as the vessels open. Meditation has been known to prevent them; it worked for me pretty much. Regular exercise helps as well. Both keep circulation at a more even keel even when one is anxious. I'd see a headache specialist and see if the diagnosis is migraines, though I wouldn't necessarily use what they prescribe it it is migraines.
What you've experienced was a panic attack, no doubt about it.
In that state of panic, you can feel doomed, at the end of your rope, a terrible sense of dread and that sense of not being there. Many others have experienced what you have described and it is certainly an alarming experience, but completely harmless. Panic episodes are mental events, but they carry over lots of unpleasant physical symptoms.
So no, you are most definately not alone. However, you should seek out some psychiatric help about this so you can back on track and put an end to these episodes.