Partitions shows it is 2GB when it is actually 120GB

After messing with the partitions to install Ubuntu, the hfs+ partition which I use for my user data went from 130GB to 2GB (OSX is on a separate partition). Disk Utility shows this partition as inaccessible and cannot repair it. Software shows that the file system is bigger than partition, I have not overwritten the location so I hope the data is still there. I can only login to a guest account, not my user account. I can log into Ubuntu if anything can be done through there All my data, photos, etc are in the area. Please can someone help me restore it.