My parents ignore me when I’m in pain

I’m really getting tired of this... I suffer from chronic migraines. I’m talking I get one every day of my life and it makes me miserable. It has led to depression and suicidal thoughts. I’m in serious pain every day but when I ask my parents to take me to see someone about it they just shrug it off and tell me I’m being dramatic or they act like it’s my own fault that I’m getting migraines and they get frustrated with me and act like I’m a burden to them. There’s been times when I’ve begged and begged enough to make them say “fine! I’ll schedule an appointment” and they never do! I seriously need help because it’s effecting my life in such a bad way that I have trouble making it to work or school or being happy and it’s just ruining everything. Why are my parents doing this??