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Hi. My name is***** I'm very sorry to hear about this situation with Chico. I'm going to be very, very honest here and say that this situation with him has me extremely concerned. He most likely is an extremely critical case as he's showing all the signs of bleeding internally. The blood in the inside of the eye is called hyphema. That being present along with blood in his saliva and the blotches on his skin (most likely signs of hemorrhage under the skin) all indicate that he's not having normal ability to clot his blood. The weakness he's having with dragging his back legs into bed could be due to anemia or physically bleeding into the spinal cord and causing dysfunction there. All this could be due to a coagulation issue or a platelet issue. Either one, there is nothing you can do at home. He needs immediate veterinary care to give him a chance to get through this. He can't wait till 8 am.
The only thing that can be an external cause of all this would be if he got into some rat poison that caused him to have a coagulation disorder. The vitamin K antagonist rat poisons will typically show with bleeding issues. Otherwise, it could be his own immune system turning on itself and causing low platelets which then cause bleeding.