Can't sleep, feeling sick, and getting worried

Hey guys! Sorry if this post is covered in typos or weird things, I'm on my phone laying in bed :/
Last night around 9 I started to fill sick to my stomach. I drank some water and tried to eat a little something, since I hadn't had much today. The nausea went away for the most part.
Then I got a headache. Took some Tylenol and it went away.
When I went to lay down everything just rushed back. I have a headache, I'm even more nauseaous, and I'm getting a kind of sweat that comes and goes.

I was afraid of maybe dehydration since I mowed the yard today. I tend to sweat a bit and I also hadn't eaten much (salt levels). I have been drinking water, with no relief. My head, idk what to do about it and I don't feel sleepy at all. Mostly because of the sick.

This past week has been weird. I have missed a few of my am lithiums. Yesterday I took them all, but the times were a bit off. Each was at least 4.5 hours apart. Does anyone have any suggestions as to what to do? Should I be greatly concerned?

I don't know how serious it is and whether you should be concerned about it.

I would suggest either calling your doctor's office or your pharmacy for this kind of advise.

Yeah, I posted early in the morning when I couldn't call either. I thought maybe someone would read it and have a quick response that would have eased my nerves a pinch, until time to call a doctor. I actually took some phenergan for my stomach and was able to sleep. Then the symptoms started to subside and there was no problem. I think I was just dehydrated and my medicine was a little out of whack.