Hello everyone. I have a son who is 1.5 years old, two weeks ago I sto…

Hello everyone. I have a son who is 1.5 years old, two weeks ago I stopped breastfeeding because I got pregnant. We switched to formula, he only drinks at night before bed and in the morning. For two days now my son has become very capricious, it drives me to the brink of nervous breakdown. He cries, bites with pain. He doesn't want daytime naps, he cries, he has a tantrum. I can't hold myself back, I hit him a couple of times to calm him down, only then does he fall asleep (hugs, kisses, nothing helps, I try to explain to him but he doesn't want to sleep. Can you please tell me how to cope or take magnesium?