TL:DR: When taking your ADHD meds (in my case atomoxetine) it’s best to take them and eat a meal at the same time.
Storytime
This morning was the first time since I started my medication that I didn't eat with it because I normally eat right after I wake up and that's when I take my meds.
Instead this morning I took my medication then got prints off of my 3D printers, started preparing more prints for printing, and started one of them when suddenly I started feeling nauseous.
Like really nauseous.
Like shivering and sweating, nauseous.
I realized what was going on so I went and ate something small, soft, and easy to puke if things went further south.
Luckily the nausea has gone down quite a bit in the last hour so I was able to eat more but walking around is still pretty rough.
I might have to call out of work this evening but hey, at least I did this today on a work day and not tomorrow on my day off.
I’ve been extremely lucky and get virtually no side effects after the initial first few weeks, which weren’t fun but still better than a lot of people. I can take atomoxetine on an empty stomache but I’ve heard many people like OP who can’t. Since I didn’t get any nausea in the initial period, I chanced it on an empty stomach and that’s the way I take it now.