All of a sudden I feel horrible?

So my entire pregnancy has gone pretty easily. I’ve had a few days of rough nausea and vomiting but other than that I have had a pretty easy time! 14 weeks hit and now I can’t sleep comfortably, I wake up at all hours nauseous, pounding headache, with a stomach ache and i have to curl into a ball to be comfortable enough to get back to sleep. Is this a normal thing?? Should I be on the lookout for certain red flags? Im mostly concerned about this headache! It’s constant! And I’ve been taking in PLENTY of water and fluids like Pedialyte and Gatorade. I’m just worried about baby obviously! 😓am I being crazy?