Babywhiting - I have had those feelings too, i was totally paranoid that DH would run off and leave me because i am so fat and miserable and moody. He travels a lot too, although rarely overnight.
Sounds like you're having a rough time of it, you need some time to wind down a bit and relax.
Vbab - Pretty sure my baby is trying to push its way out of me too, and it keeps wriggling around. If i lie on my side in bed it prods me in my ribs, and literally makes me jump, DH thinks i'm crazy, but it shocks me every time. Must be more sensitive there than my tummy.
Baby 2 - i've been getting back pains too, when i lie down in bed i can't turn over i'm in such excruciating pain, DH has to pull me over by my arm 
My naff midwife didn't comment on it at all when i told her though, it is occassionally bad in the day, but more so at night or if i've over done it.
I can't believe how far i've come, i'll be 30 wks tomorrow, where on earth has that gone.
Got the John Lewis nursery and baby catalogue with my food shopping delivery yesterday. I want one of everything, they have some lovely things. really need to buy some sheets, haven't got any yet. Thats my job for Saturday.