Niley's dashboard

This is confusing BUT, I had an account lets call it flowers it had over 1,000 followers. I then made another account lets call it Bugs it had 100 followers. So I decided I would take bugs and transfer it to flowers. I went on flowers & switched the name to Bugs. (& deleted the old bugs) Now, whenever I press the username Bugs it doesnt go.. it says unavailable. But I will press Flowers (which shouldn't even exist) and it shows my page... but saying Bugs. I know CONFUSING! so now, I can't even log in. I'll try Bugs- wont go, Then Ill try Flowers and it says there is a problem! If ANYONE understands this... help?