My chronic condition is not fake

I have an invisible condition called chronic migraines. I feel like I’m constantly being judged when I miss class or I have to extend the due date for my assignments. It’s not intentional! I didn’t choose to live my life in constant pain! I can’t exercise, I can’t gain weight, I can’t eat what I want, and I can’t drink what I want! If I go to the hospital I get treated as a minor priority. Just because I don’t LOOK like I’m hurt! I am so tired of not being understood and being embarrassed for something I cannot control!