Are you saying you were brought to tears because you weren’t eating carbs? I have known many people who have lost weight very successfully by switching a healthy, safe, and effective low carb/keto diet.
In fact I’ve never even heard of crying being a side effect. How are you suggesting these things are even linked?
All I know is that I couldn't think of anything other than carbs, and started crying because I wanted carbs so much, and then when I ate carbs it was blissful and I stopped thinking about carbs and I stopped crying. I don't know what more evidence it would be possible to have that they were linked.
In fact I’ve never even heard of crying being a side effect. How are you suggesting these things are even linked?