your DD sounds alot like my DS - and he got very frustrated & grumpy in the month or so before he crawled. i hope that's just around the corner for you & she settles down a little once she can get around & investigate!

it does get tough without a break. can you leave your DD with your DH even for an hour on a weekend so you can go for a walk or go & get a coffee & read a mag or a book? i nearly always feel guilty for leaving DS with my DP while i go out & do something - not that he makes me feel that way or anything, it's just me - but after a while i just forced myself to go & do things so i could have a break. being a parent is incredibly rewarding etc but it doesn't mean you don't need some time out every so often