Possible UTI?

My body feels weak, sore, and tired.

Yesterday I had a head ache and a really bad lower back ache. My pee was cloudy. I was also nauseous.

I’ve been drinking a normal amount of fluids and have been trying to drink more.

Today, my symptoms aren’t as bad as yesterday, but I just can’t understand why I feel like this.

I don’t know if this is something I should go to the doctor for or if I should wait a few days to see if it goes away on its own.

My grandma thinks it’s a UTI but I don’t feel any pain down there when I pee