I believe my icloud was hacked by an individual who had physical access to my devices. Is apple support able to help?

I believe my icloud was hacked by an individual who had physical access to my devices. Following this I believe my mics and email were accessed over a period of time as well as an explicit reminder set for a specific date. I am trying to prove this but am no expert on the logs available or who has logged onto my iCloud from what device. I couldn't see anything obvious from the logs I downloaded. Is apple support able to help or are there specialists who can do this?