Could be a bit too much salt but remember there is no fiber in your system to slow down the fluid through the gi tract, so, kinda expected. Not something I would worry about, just sip more slowly next time.
I have had too much salt come out as projectile vomiting too, better to consume slowly ime.
If it was hot and fast, that’s toxins leaving the body quickly and a very good thing. Also, salt water doesn’t stay in the body, so, don’t chug it, you might have given yourself a saltwater flush. Also, not a bad thing.