Hi @julieanna57 As @eileen11108 mentioned in her reply to you, your platelet count of 1.2 million is quite elevated and even at 500,000 it is significantly higher than the normal high for a female which can be 150,000 to 300,00 or 330,000 depending on age.
It sounds as though you had a bone marrow biopsy which ruled out leukemia. That had to be a huge sigh of relief. But having platelets that elevated can mean you have an increased risk for blood clots. I’m sure that’s why your doctor has you on aspirin. But that isn’t reducing the amount of platelets or addressing the condition.

It would really be in your best interest to seek another opinion from a hematologist; a blood specialist. That’s what I would be doing if I were in the same situation.
Is the doctor you’re seeing a hematologist?