I often become nauseous for no reason whatsoever, but then I panic (of course) and trace back everything I ate and any possible way I could have gotten sick from someone, and think that there must be a reason I'm feeling nauseous. And I'm so tired and want to go to bed but every time I turn off the lights and lay down, the nausea comes back stronger than ever. I feel a little better now that I'm up and on the computer, but I just wanna go to bed and know that the nausea won't come back

Any helpful tips? Does this happen to anyone else?

Even drinking water doesn't really help. It actually kinda makes me more nauseous.