Signs from Stephen King's Dark Tower

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I am currently reading/obsessed with Stephen King's Dark Tower series. I'm on book 6, "Song of Susannah" (PLEASE NO SPOILERS!!!!! Hear me, I beg!) Those of you who have read into the series as far as I have know the significance of a pink rose and the number 19. Yesterday was my 1 year marriage anniversary and my husband brought me pink roses. I assumed he would get me standard red roses or a mix of wildflowers and daisies because they are my favorite. No, pink roses... And the number 19 turns up all the time.. Other silly things as well, my birthday (July 9) is mentioned in book 5.. No big deal, really because lots of dates in June are also mentioned.. Other things that are harder to put my finger on. Just my overactive imagination, right?? My question is has anyone out there so immersed themselves into a story that they start seeing/noticing weird things that are affiliated with the story?