i think i been hacked in my Facebook account help me out?

[Jay]

cause i went to check my Hotmail
and one of my messages said
that "someone as hacked into your Facebook account''
but nothing as been changed
except for my e-mail address
cause there is one that
is mine and
there is another one
:its got my name,a dot,numbers
and @Facebook.com
how do i find someone that as hacked in
to my fb account?
cause i don't want to
start over again
by making a new one
help