It was probably the salt in the broth that made you feel better. Day 3 is usually the worst day. How did you prepare for your fast? What is your regular diet like? If you are a lot of junk before hand the first couple of days are harder. Why are you fasting? If it’s just for weight loss you’re fine.
If you don’t mind a “dirty fast”, I’d say you’re good, keep going ! It probably helped because of the salt in the broth, do you take electrolytes ? It’s really important to supplement with electrolytes while fasting.