@arianna
Those of us on Connect aren’t medical professionals so we can’t diagnose conditions. But we can rely on our experiences and valuable insights we’ve learned along our life’s journey to help other members. Over the course of my leukemia adventures I’ve had a great deal of experience with blood work: white and red counts, hemoglobin, platelets etc..and what the numbers mean.

However, I’m not familiar with Alpha Thellasemia. From my quick research on Mayo Clinic’s site, (and a couple other sources) it appears to be an inherited disorder.
Do you have other symptoms besides high platelet counts. Are your WBC/RBC in normal ranges and just your platelets high? Are you anemic at all?

You mentioned jogging, so your energy doesn’t seem affected by your condition so that’s great. If you’ve been jogging and it’s not been an issue, it would be good to continue with that exercise and others as it sure keeps your blood moving along. ☺️ (A quick call to your hematologist’s office would give you a clear answer)
https://www.mayoclinic.org/diseases-conditions/thalassemia/symptoms-causes/syc-20354995
Because of my chemo treatments my platelets would fall to non-existence. To boost platelets I learned what foods were beneficial.
So for High platelets the opposite would be appropriate. You have high platelets and want to avoid anything that would further unwanted clotting. There are many relatable sites but found this one helpful.
https://healthyliving.azcentral.com/foods-to-decrease-platelet-aggregation-12399508.html
It will be interesting to learn what the biopsy reveals. In the meantime, keep positive and stay active! Lori.