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I certainly do think that he needs to be seen ASAP with the symptoms that you have mentioned.
I would rather take him to the ER and get him evaluated.
It could be many things like a urine infection, stroke etc.
He does need to be evaluated with blood and urine tests and may be a CT scan of the head if required.
Without seeing a doctor there is nothing much that you can do at home for hiim.
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Just to let you know ER = Emergency Room.I tried the live chat services but could not connect with you.I have answered your question above. Let me know if you have any further questions. Rate me for my services when you are done.Kindest Regards