7 ibuprofens at once please help! im scared what will happen?

so i accidently took 7 i forgot that i already took 4 a few minutes prior and not thinking i took 3 more. each 200 mg. I ended up having a big migraine. and my kidneys kinda hurt. i've also haven't been drinking as much fluids so I don't know if my pain is because of that or the overdosage. i heard it could shut my liver down and kidneys and im scared. what will happen?
7 ibuprofens at once please help! im scared what will happen?
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