I have high eosinophil levels and was told it was allergies. I don't have allergies. I have been seen for ovarian cysts lately (ultrasounds determining solids within a cyst, surgery scheduled and then cyst began to decrease in size and surgery was canceled) and I am extremely fatigued, sleeping 10 hours/night, but otherwise I am very healthy. The rest of my CBC was normal and I believe I also had thyroid tests were normal. I am 50 years old, female, 5'2" and I weight 100 pounds. What can cause high eosinophil levels?