You're probably feeling better now, but for reference, I had those. From about 5 till my late 20s they happened about every 2 weeks. Later they got less and milder, now I get short ones about 2 or 3 weeks.
I try to be alone. I let mind wander. If it gets really bad, I'll curl up in a corner, even in a toilet cubicle, anywhere I won't be disturbed and close my eye. Sometimes, I found it helps to imagine I'm a baby. Hope that doesn't gross you out. Any port in all the storm. (Don't worry, you won't suddenly wet yourself. It's just in your own mind).
Drugs don't work. Prescriptsions make you either sick or are addictive and make you paranoid. My mother was a benziodiazpine addict. Not nice at all.
Other drug just don't work. Alcohol especially. Worse, these are like getting off the bus in the middle of no-where without properly checking. The only way back is to walk and that takes ages, is dangerous and you're gonna get hurt.
Psychotherapy is a waste of time, unless you get an appointment while you're down. Otherwise, they just say they can't see anything wrong with you.
Sorry I can't be more positive. It does ease off as you get older. But while you're down, that is not just little consolation, it's insulting. Sorry, just for the info.
If you find better ways for you then I'm so pleased. But for me, facing up to it, is the only way.