Scared I might have appendicitis but no pain on right side. Pain is everywhere?

I just posted a few symptoms but when I pee, it hurts and everything just REALLY hurts. I coughed and my lower stomach hurt so bad. My head hurts, I feel nauseous, and I just feel so out of it. I can't even describe the pain. By the way I'm all alone so thats why I'm scared because idk what to do!
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