my son was born with his heart pressures all over the board, we learned later that had he not have had surgery he would have died of a heart attack
at 1 month old he had an angioplasty and the anesthesiologist fucked up and chemically burned his foot 3rd degree, over about 20% of the whole thing. at 2 months they determined none of that helped and they had to perform heart surgery to widen his pulminary artery
toughest two months of my life, more times than once i hit something hard enough to render my hand inoperable, you get through it and it makes you stronger. he's fine now, trying to eat dirt and piss on you every chance he gets, just like any normal 13 month old, im sure it will turn out the same in your case.
oh yes, born anemic as well
and i can look around and see things that make me very thankful that thats all i had to go through, look at it from that angle
good luck