Yeah, I haven't made pickles (like, gherkins), but I've made a lot of chutney and relishes. Salty/sour isn't just for flavour, it's what helps preserve the end product. Salting, sugaring, drying, alcohol, and smoking were the main ways of preserving things before canning, refrigeration, and modern preservatives were invented.
Now, if you drank a lot of a very salty thing you would probably feel unwell, but a little? Gatorade is naturally salty, to help with electrolytes. A lot of commercially bottled Kombucha has vinegar added. Athletes all over the world drink pickle juice shots to help prevent cramping late in a game (you see it a lot at the tennis).
Salt and Vinegar added to a drink are going to be unpleasant, but probably not dangerous unless a lot was consumed or something more dangerous to health was added. According to statistics, most people who consume salty foods or chips do not have health problems. Only excessive consumption can lead to negative consequences, causing an increase in blood pressure and increasing the risk of cardiovascular diseases. I came across this data for a college assignment and used
https://edubirdie.com/statistics-help for that. Since then, I began tracking various indicators of consumption to assess how it affects the body.
MOO