“Did I Ever Tell You This?” The 75-year-old “Jurassic Park” star recalled experiencing swollen glands a year ago while doing press for “Jurassic World Dominion.”He said he was soon diagnosed with angioimmunoblastic T-cell lymphoma, undergoing chemotherapy until he switched to a new drug he expects to take every month for the rest of his life.“The thing is, I’m crook. Possibly dying,” he writes in the first chapter of his book, which comes out Tuesday. “I may have to speed this up.”He said he never intended to write a memoir, but started doing so during treatment last year, as he realized it “was actually sort of giving me a reason to live.”“I found myself with … nothing to do,” Neill explained to the Guardian in an interview published Friday.“And I’m used to working.