Some people react verry badly to eggs. I'd agree with not doing that again for now.
Was there something "different" in the meatball soup that you do not usually have? If not that probably wasn't the culprit. Some people add more salts when making a soup than they normall would. . .
Drink your water and get a good flush. It will be like getting over a cheat. It's not the end of the world. Unfair as it may seem. You should be rightside up again in No time. Losses are looking great BTW!! Good Job!