Is it spoof attack or personal information compromised? by hacker

Hi, I was receiving email from my own email account which is outlook.com. I am confused if someone know my password. I have change my password several time. I can access my email without problem i have change security question, password even personal details. Would you please let me know if it was a spoof attack or somebody really log in my account?could you please tell me who can help. Because all my personal information are in my hotmail first name,surname, date of birth, phone no even my recent online transaction receipt. I will really appreciate your help and support.  I need support because i have inform the bank and this is causing me lots of tension. Need help to know if somebody really was accesing my account or just spoof attack. Thank you