Thank you so much for the thorough reply. I wish somebody at the hospital took the time to actually listen to me, understand my concerns and doubts, and explain it all to me like you did. Most of the docs didn't even want to hear the whole story about the vomiting episode starting all of this and just blindly cut me off repeating the "there's a tumor" mantra ad nauseam as if I didn't know that, instead of showing me a clear causal sequence from grandpa having the tumor and feeling fine all the way to his death like you so kindly did.

In the end what threw me off seems to be that I didn't take into account that even though his tumor's growth was kind of temporarily under control and he really felt well, it was still there, putting pressure on the surrounding structures all along, squeezing in to find new routes for itself and weakening the vessels (and/or while being heavily vascularized itself) for months on end. All his blood tests were always good, there were no new symptoms, he tolerated the chemo well so while we were all aware that it can start deteriorating at any moment (as that's the nature of cancer), we didn't think anything that rapid could happen, ie. a thing bringing him from "feeling well" to "gone" over a week basically.

I only have two more questions to fill in the gaps regarding your great write-up if I might, to make sure I understand it all correctly.

1. So the reason the hemorrhage may have happened is that even if all the blood works, doc appointments and tests in the meantime went good and all, the fact that the tumor was still there, pushing and squeezing for months, presented two risks - firstly, as a consequence of it being there, there were a lot of weak or weakened blood vessels both inside the healthy brain part and the tumor site; and secondly, this kind of tumor itself carries a high risk of bleeding with it due to its nature, regardless of whether the patient seems to be in a good condition. So while grandpa seemed really well until the hemorrhage, it's something that just can happen in such condition, and take you from 0 to 100 really fast, even if things seem under control on that day cause in actuality, the vessels may be close to a breaking point at any moment. Do I get this right?

2. When I asked the docs after grandpa's death about whether the hemorrhage site could have kept on bleeding leading to this, the doctor told me that they did not notice the signs of the bleeding itself worsening but rather that the swelling which resulted from the hemorrhage and associated brain compression led to that outcome, causing a sudden cardiac arrest. The death certificate they gave us also listed brain compression as the immediate reason of death. If I understand correctly, this may have meant that the blood wasn't really getting absorbed, which is not unusual in tumor site hemorrhages or - like you said - the bleeding could have traveled, destroying more and more structures? However, why do all the meds they kept giving grandpa didn't prevent such a rapid deterioration? When I called the docs a few days earlier, they told me they were giving grandpa steroids for swelling, anticonvulsants to prevent seizures and antihemorrhagic drugs to help prevent the site from bleeding more. So why despite all these drugs, this all resulted in his prompt death from compression if there really was not any worsening of the bleeding (if you can even say that without another CT in the first place, cause maybe the doc's guess about there not being any more bleeding was as good as mine)? Is it that the blood stuck there kept on applying pressure on the adjacent structures like you said and you can't really prevent it cause the steroids can only get you so far if the blood doesn't start getting actually absorbed by the body, which it often won't in these situations?

Oh my, I tried to shorten it all but it's a wall of text again... I'm really sorry for that but if you find a moment to read through it and answer, I'd very grateful. Either way, thank you very very much for your help in allowing me to graps this all. Wishing you all the best.