The admin in "howdy admin" is the username, but it still may be assigned the role of editor. Go to Admin->Users->All Users, locate admin in the list and see what Role is assigned in the right column.
EDIT: Sorry, I just reread your original post and you cannot see 'Users', so this suggestion does not apply. I will look for other solutions.
If it does not say 'Administrator', then you will need to log in as an administrator to see the other options.
If it does say Administrator, then I do not know what could be causing the problem.