What's going on here?

I'm just about 10 weeks and haven't really had any morning sickness so far, except for a few times I felt a little nausea come on but it very quickly dissipated.

It's 1:40 am and I just woke up out of a deep sleep feeling so nauseated. Indigestion too. Wasn't sure if it was food poisoning as we went out to dinner tonight and ate exactly 6 hours ago, the typical food poisoning window.

I drank some water, tried to eat some crystallized ginger and sat in front of the toilet. Then a headache started solely at my left temple. I never threw up, the nausea subsided somewhat and I made it back to bed with a bucket for just in case. Managed to choke down Tylenol and a Pepcid. Headache starting to pass and dare I say the nausea is subsiding? I feel like I might actually need to go to the bathroom for the first time in a couple of days but I can't imagine getting out of bed.

What the heck is going on here!? Appreciate any insight!