Thank you TwoSteps I seem to have diverted this thread, sorry OP! I am grateful to you for your kind words.
I am very much like you describe actually. As a consequence my DS1 has always been very mature, very articulate and has an amazing sense of self. He is fab but I didn't see that until he was about 3, before that I just felt like I was a terrible mother, none of it was natural. Even today, I was looking at people at the messy play session, there were mothers who were so enthralled by their children banging on pans and sticking glitter to things while I was just sat chatting to DS as if he was my age!
I can't really DO baby talk or get excited about things like a baby banging on a pan. Am I heartless? Maybe so. I talk to DS2 constantly, I cuddle him, smile at him, tickle him, read to him, help him with his physiotherapy. I feed him, dress him, keep him clean, kiss him, love him but I just don't really see the excitement or joy in parenting him yet. (I am prepared to be flamed for admitting that). It's more like a job but a bloody difficult job which I am so emotionally involved in because I do love him so much that I just feel so worn out by the end of the day.
This is where my fascination with larger families stems from I think. The fact that you all do this day in, day out and just when you've got to (what I think!) as the lovely bit of parenting, you're starting all over again with another baby, then another and another. I think you must all be supermums because I am just too selfish to ever put myself through this again.
I know one day it will all be worth it. I know one day I will slowly realise I have reached that 'golden age' of parenting DS2 where I enjoy it as much as I do with DS1 but that feels a very long way away. I adore the idea of having 5+ children but the idea of ever having to do this last 21 months all over again makes me feel ill. I am snappy, moody and exhausted by the end of every single day. I take my hat off to every one of you who does this over and over again but doesn't let it affect you in this way. You are all clearly 'built' for it whereas I am a light weight!