My job was at first understanding, but mostly I worked in my office with the lights off when I could and worked twice or three times as hard and put in a lot of hours between migraines, this is when they were chronic, and even worked through migraines, which they say may be why (although they say I always would have reached the point of constant migraine) that I got a migraine 14 years ago and still have it, it came early.
I went on short term disability and was in and out of hospitals until I went to a specialized hospital for migraines only and they were able to get my migraine pain down to about 2 to 3 and said I could slowly go back to work but then work no more than 40 hours a week.
I went back slowly to work in September of that year and by the middle of October was working 40 hours a week. At the end of the year they cut my salary because I was only working 40 hours per week even though I often did put in more but from home.
They let me keep the lights off in my office, work from home as often as I needed, and we changed my work to be more working as an expert for others in office rather than dealing directly with clients (I was a CPA with an expertise in international tax)
I then began to find out that a partner who I had thought of as a friend had been taking credit for my work for years and now with my new role it became clear not only to me but to others.
She began making my life more difficult as she was not able to take credit but I tried to let it go and just do me, but she more and more wasn't having it and my pain level kept rising and rising in response.
My neurologist told me that she would likely look for a way to let me go once someone else had my knowledge of international tax and that my migraine wasn't going to get better and told me I needed to go back on disability but this time full time disability. My neurologist was right, the next Monday the partner called me into a meeting in a conference room where she knew I couldn't handle the lights and told me all kinds of horrible and untrue things which I had documented weren't true because I had great reviews from every partner but her, she said that they only said good things about me because they were afraid of me? Whatever
She wanted me to go on part time disability and train someone else in what my expertise.
I said I was going on full-time disability per my doctor immediately.
I've been on long-term disability and social security disability ever since May 2010.
I tried to work with constant migraine but she pushed me into way too much pain. I likely eventually would have ended up in the same place because I have gotten worse as the years go by even on disability.

I'm sorry this is happening to you, but it makes me feel better that someone else experiences the aphasia too. I'm now getting tinnitus, vertigo, and I smell smoke...faintly. When people say "just a headache", I wish I could give them my worst migraine experience from prodrome all the way to postdrome. It is a full body experience and exhausting. The job I was let go from, at my home office were super understanding. In fact this very quiet and timid engineer set up a migraine zone for me with dimmer lights and a fan. That about made me cry. But I do understand the panic of a new boss. One of my past jobs, the business I worked for was sold to a guy that tried to get me fired...twice. I know this because the owner of my work place at the time told me about the calls. I used words in my sentences that are inappropriate to use with someone who is in a management position. Even when the words were in a conversation towards a manager from a different business. The words were: unacceptable and denied. Too Army drill Sargeant I guess.

Sorry that this happened to you. I hate the anxiety that comes with migraines. I hate the depression. I too find myself in tears. My mom seems to be my worst critic which is very hurtful. She recently had a liver and kidney transplant last May. So when my migraines linger on. She can get nasty and start comparing it to her ailments. I didnt think it was a competition. But It’s hurtful especially when its coming from someone i love. It makes me feel like i am being insenitive. But i hate having to walk around with medicine. Being laughed out when i said Merry Halloween. Because words dont come out right because of migraines or medicine. I go out with friends and am the driver and drink hot tea. And we can only go out to lunch bc my migraines typically strike at 3-4pm. So while i dont have an answer for you. I do feel your pain of throwing up for 14 hours until falling asleep and the migraine ends. Then waking up and my legs barely able to hold me up. Half my face paralyzed and words not coming out right. And my hearring is going now too! But, i found a job with an understanding manager and great co-workers who can see a migraine coming in my eyes. Or when the fire alarm light start blinking gets me out of there and sends me home. However, i have a new manager. So a bit nervous now. Sorry this is so long just wanted to let you know you arent alone with the anxiety and not remembering what goes on during an attack. Hope this gets sorted and hope you feel better soon.

From what I've read the EEOC has to ok it? About 97 % of EEOC screened ADA cases win. They even have a dollar amount range. But the EEOC is government run, so I will have been waiting for about 6 months. I need a job. I need to learn to buck up.

Talk to your doctor and get proof that you have a history of migraines. Get an attorney. This should fall under the American Disabilities Act. Fight for your rights on this. They are in the wrong.