I am in pain all over.... Headache, eyes hurt from headache, wicked heartburn, hungry, and my kidney…

I am in pain all over.... Headache, eyes hurt from headache, wicked heartburn, hungry, and my kidney is acting out. I am having a strong pain in my left side while using the bathroom but when I am done it goes away. Hasnt actually hurt since my drs appointment on friday but its in full force tonight and I started to cry. If it continues I am going to go to the er or a walk in clinic.