Why am I getting these migraines?

Okay lately I've been getting there severe migraines that come whenever my mom decides to either yell at me or treat me like dirt. Lately she has been telling me I am worthless and I do not need to eat cause it costs money. Aside from the dizziness and nausea, I still have these migraines and also it feels like I have a lump in my throat. Also through all this I am suffering from depression.