Sounds like a mixed state, they're the worse. I can't really think of anything you can get over the counter to quickly alleviate this. If you had some left over corticosteroids you could pop yourself into a different state.

Lithium orotate is good, temporarily, but can be difficult to find over the counter at a local pharmacy. Omega-3's can help, but not with the quickness I suspect you want. You could always manage in the interm with alcohol, but this will ultimately do more harm then good in the long run.

Same situation with illicit drugs like meth, but speaking frankly even jail time is preferable to living with the torment of a mixed state. People question why someone would want to kill themselves, these people thankfully will never experience the living hell of an all out dysphoric mixed episode combined with withdrawal.

Moose72 had the best suggestion so far, see if you can track down some Ativan or similar by calling your doctor or visiting a same day clinic. It does get better.