Thanks for the replies people!
I'm quite sure the sick feeling is just being caused by fear of the unknown, rather than not wanting to go!
I know deep down my wee girls would love it over there and would have a better quality of life so I think it's the right thing for us to do.
I am close to my family here and I see my mum at least 4 times a week but she's all for us moving!! It's something she wishes she had done when she was younger so I think that's why she's so keen for us to go.
It's nice just to have the reassurance from others on this site that it can work out.
I know it won't be easy but I think we're ready for it!
Kevin has filled out the online assessment thing and we're just waiting for the call now. I'll keep you all posted and there will probably be a barrage of questions from me in the coming weeks/months!!!!!