Dave Meltzer is reporting in the members-only section of F4WOnline.com that after performing an angiogram, Ricky Steamboats doctors have determined that he did not suffer an aneurysm as previously believed. He actually developed bleeding on his brain after a capillary burst, which is generally caused by blunt force trauma. He's still in the hospital and will be for at least another five days, pending the results of another angiogram to check if the bleeding has stopped.
The diagnosis implies that this may have been caused by a bad bump or hard shot during the angle on Raw. Now that it looks that way, it should be interesting to see how WWE follows up on the angle and Steamboat's brain bleed.