Can you get out of bed to pee?
If you can, that's one thing you can do. I'm guessing you're not lying in a puddle of your own urine.
Maybe that's all you can do today, but it's something.
Bad headaches suck. I can relate because the only way to get rid of my worst ones is to sleep through it.
Will screen time distract your brain or make it worse? If you can handle some screen time, I usually recommend PlutoTV. They have entire channels devoted to American TV reruns from the 1970s and 1980s. I like The Love Boat for distracting pap. If you can pay attention at all, try The Iron Chef, dubbed in English. Listening to the dubbed voices giggle makes me smile.
I hope you're able to find some peace today.