hey there
i dont know if my advice is relevant as my twins were born at 30 weeks- but twin 1 had stopped growing and developing at 28 weeks due to placenta failure and low chord flow
my twins are now nealy 7 years old and man its been a tough journey. Twin 1 was 1402grams and twin 2 was 1800grams- quite good sizes for their gestation, but born with a 10% and 20 % chance of survival at the time!

I reckon it took twin 1 until he was 2 years old to catch up size wise to his peers. Now he is a giant and heaps taller than his peers! Twin 2 has always been ms average size wise and continues that way

health wise has been a toughie. Twin 1 has CLD and asthma- his normal o2 stats sits around 94% on a good day- it doesnt bother him- just annoying - it worries me of course some times. He has also had to have 5 operations to finish off and fix things that mother nature didnt as he was born too early for them to happen. Also lots of pnumonia until he was around 3 years old and then the pnumoinococcial vaccine made a huge difference! Only around once a year now!
Physically its has taken alot of hard work to ensure that muscle tone was there- i really credit gymastics to helping with this area! Twin 2 acheived milesstones ahead of time where as twin 1 lagged a bit- but got there in the nic of time lol

at school twin 1 has struggled- no short term memory- a real bugger when you are trying to read etc. heaps of intervention and school support has made a huge difference!! He is still 12 months behind his peers at the moment, but getting there. Twin 2 is 12 months in front of her peers - go figure

they both now wear glasses
so all in all- time has made living with prem reprecussions, more doable, but there are still things that will always be reminders of their early birth

one thing i believe has impacted on them the most- is their determination and dogmatic traits that they had to exhib to survive are now hard work to deal with as children !!
but hey- we wouldnt have it any other way!!!!