worst nightmare BROKEN BONE/SHARP POINT FROM SIDE

[Thevacantface]

If it's the frog's left side, then it's the stomach. My guess, based on the link you provided is that the frog ate something that was sharp or hard that poked through the stomach and is now trying to migrate out through the skin. Meal worms and super worm both provide a high risk of this due to their hard somewhat sharp exoskeletons, as to fully mature crickets if the frog is very young.