Ok, i just watched the movie the other day….it was pretty good, the ending sucked though…but..some things bothered me about it…

Ok…so…why/how was/were Sandra Bullock’s days all messed up? Why did she keep randomly skipping from like tuesday to…like thursday, etc (<---and example)
Was it a dream…? Obviously (SPOILER!!) Jim dies…but when she is just figuring out how/when he dies…was that a dream…or….what?? o_o;;;

Help me please! >_<;