My Work is not even willing to accomdate my migraines and what do I do?

I was hired for a job in March of 2009. Before i was hired my last manager told my current manager that I had migraines but otherwise I was a great employee. When I interview with my manager I told him I had migraines and I would sometimes need to wear sunglasses inside. I also told my assistant and front manager when I started working. I very rarely call out when I have a migraine only recently my managers have thrown fits whenever I wear my sunglasses at the reception desk. I have been trying to be accomdating asking if they could shut the curtains in the lobby. turn down the lights or if I bought sunglasses that looked more like regular glasses. Today my manager through such a fit that he made me cry and then I ended up throwing up. I couldn't call out as they say I have alot of absences which are because of my migraines and them not allowing me to wear sunglasses. I also have to drive an hour just to get to work and the meds I am on I can not drive on so, I have to wait to get to work to take them. I keep trying to ask them to atleast meet half way some way but, I'm seeing no action but, getting myself more sick.