I came to this thread to write almost word for word what you have written. So if it is any consideration you are NOT alone. I keep thinking that there must be some magic phrase that I should be using or some brilliant technique that I have missed in all those books but I think it's just plain attention seeking and jelousy of the younger sibling. (mine is 3 years and one month with a 16 month old sister).(pretty close to you I think (22 months apart) ... Soldier on Mum. Apparently it gets easier!..Im freaking out actually as i have number 3 on the way with almost the same gap...