leafn4give,
Sounds like you have several different aliases. If you have an iCloud account, you could have any of the following login aliases: @me.com, @mac.com, and @icloud.com.
Regardless of which one you use to login to your account, it's still the same account, so this wouldn't have any impact on which calendar events appear. What you are seeing should be the same regardless of which alias you're logging in with.
At this point, if the events are missing, you can attempt to recover them using iCloud.com. Once logged in, click on your name at the top-right and go to Account Settings. Here you'll see the option to restore any recently deleted or missing calendar events. For more info, check out: If you accidentally deleted your calendars, bookmarks, or contacts from iCloud
If you're unable to restore these events using the steps in the resource above, they won't be retrievable.
Have a great day!