My hematocrit, RBC, Hb, and mean cell volume are elevated. Please help.

Hello doctor,

I have been feeling unwell for a long time. These are my recent blood test results. My doctor said that the values of my hematocrit, RBC count, hemoglobin, and mean cell volume have been out of the normal range for at least 10 years as far as he could guess. I think it should be investigated. What do you suggest? The results of the blood test are as follows:

1. Hemoglobin concentration-161 g/L [120.0 to 150.0].
2. Total white blood count- 9600/µL [4.0 to 10.0].
3. Platelet count - observation 327000/µL [150.0 to 450.0].
4. Hematocrit- 0.491 l/l [0.36 to 0.46].
5. Mean cell volume- 83.8 fL [83.0 to 101.0].
6. Mean cell hemoglobin level- 27.5 pg [27.0 to 32.0].
7. Mean cell hemoglobin concentration- 328 g/L [315.0 to 345.0].
8. Red blood cell distribution width- 12.5 % [11.6 to 14.0].
9. Red blood cell count- 5.86x106/µL [3.8 to 4.8].
10. Neutrophil count- 6300 /µL [2.0 to 7.0].
11. Lymphocyte count- 2600 /µL [1.1 to 3.5].
12. Monocyte count- observation 500/µL [0.2 to 1.0].
13. Eosinophil count- observation 200 /µL [0.0 to 0.5].
14. Basophil count- 100 /µL [0.0 to 0.1].
15. Percentage neutrophil count- 66 %.
16. Percentage lymphocyte count- 27 %.
17. Percentage monocyte count- 5 %.
18. Percentage eosinophil count- 2 %.
19. Percentage basophil count- 1 %.

I am currently taking tablets Sertraline, Cerelle, and Omeprazole. Please help.