I had a similar experience regarding CBC testing. I wasn't routinely tested until I lost 20 lbs in 3 months. Looking back in my medical records on my portal I discovered that I had a CBC done in 2022 when I was seen in the ER following a fall. At that time my platelets were somewhat elevated, but no follow-up was done. When I was tested in April 2025 before starting HU my platelets were over 1.2 million. Glad I didn't stroke out or suffer a heart attack. Now my friends and family of a similar age (I'm 72) are requesting CBCs at their regular exams.