There's definitely two accounts there; you're posting from 'reedo_39', and someone (probably you) is using 'reedo_43' from the same IP, so probably the same house and internet connection. Unless you have a sibling on the site, I'd say you made two accounts.
Are you logging in using email, the username, or a social networking site?
39's first recent post was at 7:48 AM on the 27th. 43's most recent post was at 8:20AM on the 26th. I'd say at some point between those times you logged out, then came back and logged in again, and if you somehow had two accounts tied to the same email it's possible the system switched which it defaulted to.