iPhone has lost all my calendars since switching to iCloud

hey there! hoping can give me idea of here. have begun syncing iphone calendar , imac calendar icloud, , of calendars native imac not available on phone. can see them (they syncing via itunes), cannot edit them, , none of calendars created there anymore, cannot create new events using them.

running lion, date on software, , making me sad , stressed out!

have ideas?

 

Forums iPhone, iPad, and iPod Touch iPhone iPhone Tips, Help and Troubleshooting

• iPhone
• Mac OS & System Software
• iPad
• Apple Watch
• Notebooks
• iTunes
• Apple ID
• iCloud
• Desktop Computers
• Apple Music
• Professional Applications
• iPod
• iWork
• Apple TV
• iLife
• Wireless