I think it's so cool that you had those entries to reread. I was/am fascinated by the 'memory' blocks and time distortion that was in play. Not being able to predict that, it's just great that you had the foresight to keep such a journal, and do so in such a candid (with yourself) fashion. If a round of chemo happens in a forest and nobody is around to remember the details, did they really happen? BTW, giraffe = my favorite animal, but unfortunately for you yes, if you had a giraffe super power it would probably have to be a stretchy neck. Super powers transposed from creatures always involve the most dominant characteristic of that creature according to every sci-fi book ever written anytime anywhere.
The journal was really good for piecing together lost chunks of time. There are so many holes in my memory from that year, it's distressing especially for a person who values his mind above all else. I fear you may be correct with the giraffe superpower. In my dream I was trying to come up with an alternate power, and was getting settled into "glowy fur" when the dream shifted to the next scene. The glow was the golden light of the savannah sunset. Yeah, guess I'd rather have super-stretchy neck than glowy fur.