Why do I feel like this?

brexlee • 🐶 mom and momma of my beautiful baby boy 3/1/16 10/16/17

These past two days I’ve had a headache (not as bad today I had slept good last night) and I NEVER get headaches so it was new to me an along with that I have felt mm I wouldn’t say nauseous but sick in that way, idk why all of a sudden I started feeling like this or why my heads been hurting, any tips or remedies I could try?