Frequent urination and pelvis pain?

I've been feeling strange today. 
First of all, I've been peeing frequently and even afterwards not feeling like I completely finished. 
My lower back hurts (I thought maybe this was my old bed) due to waking up frequently in the night, but also realize I went to pee each time I woke up too. 
My front pevis also aches. Moreso the left side. 
My period is ending today but it feels like cramps. 
Last night I had a headache for a few hours until I went to bed.
I don't have health insurance anymore after losing my job so I'm not sure what to do or what is even happening. 😩 Anyone have an experience like this? 

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