@creative_writer how have you been today?
As a fellow migraine sufferer I can completely understand how you felt earlier in the week. It's not unusual to feel disconnected from your body during and after a migraine attack. Have you heard of a "migraine hangover"? It's that foggy feeling you get after the pain has gone and lingers for a day or two. Despite being very unpleasant, it's normal... I had very much the same feeling over the weekend. It's pretty awful though!
As others have suggested about the salt, perhaps you could get some electrolyte products to have on hand when you feel a bit funny? I use one of those sports drinks powders, which is especially helpful in the hot weather.
I know it can feel like you are missing out or will fall behind if you take some time out when you have a migraine (or a sick for that matter) but it's really important to listen when your body gives these signals. It's ok to take the day off whilst you recover.
I used to push through and suffer, but then I just set myself up for more trouble as I was ignoring my needs.
Getting enough sleep is also really important for fending those pesky migraines! (It's my number one trigger unfortunately).
How is your throat? Infections and stress can cause similar symptoms so it can be hard to tell if you're getting sick or what's going on when you feel off physically.
Anyway I hope you're feeling a bit better today. Take it easy over the weekend and take care.