Not really. Being more “emotional” and “touchy-feely” is considered part of the syndrome, but it can be positive or negative depending on the upbringing and environment. My family has belonged to ANFAS for over 30 years (the name is more PC now, but originally it was “Navarrese Association For Friends And Family of Subnormal People”); we go under the Friends part.
The two closest to us are helluva people. One is a guy in his early 40s, #9 in a family of 10. The other one, a woman, is 32 now, #4 in a family of 5. In both cases, doctors recommended going for #n+1 because they said “the probability of a 2nd Downie is very low and it helps parents get rid of the idea that this is their fault. It’s not, it’s just a case of shit happens”
She has a law degree. In Spain Law is a Bachelor’s. She graduated from HS at 19 and then signed up at the National Long Distance University (UNED), because while she didn’t mind being a “flagbearer” occasionally, she hated having to do it one day after another. As a Long Distance student, she knew she would be graded by someone who didn’t know her from a potted plant, who had never seen her, and who would look only at her knowledge, not her face. The degree took her longer than your average “presential” student, but less than an average LD student. She works for Anfas, mostly on work contracts, housing contracts and custody cases. At first people were surprised when the Downie new employee/renter brought the lawyer and this was also a Downie; by now nobody bats a lash.
He works in an Anfas-owned printing company. He’s one of my biggest sources of hugs. He just loves hugs and will give one to any available source 
Another guy, also in his 40s, is in my parish. He usually sits through two Masses every Sunday: first, Children’s Mass, then the Parish Mass. He likes to hear how the priests explain the same bit of the Bible different in both Masses and the different music. He always hates it when the Christmas season ends because he’s got to leave his zambomba home (a very noisy musical instrument). And also a big hugger. He loves it when the priest asks him to serve as an altar boy or help distribute Communion (anybody who’s received Confirmation can do this); he’s been known to see someone he knows in the Communion line, hand the plate with the Forms over to someone else and give the first person a hug. Then he retrieves the Forms and keeps on. The first time the priest stared, then broke up laughing and had to put down his platter himself.
All of them have HUGE tempers - the few times they explode, you better not be close.
Two of the people who work at the printer are Downie siblings, children of a Downie couple (who also happen to be cousins… let us not get into that particular family’s dynamics, shall we?). They are always angry, very demanding and an absolute pain in the ass; out of 42 employees (38 Downies), they’re the ones who are always starting trouble. The ones most likely to pinch someone, slap someone, punch someone or throw a tantrum. There are three others who are pretty bad, but those two just make anybody else look like an angel.
Being afraid that you won’t be able to do a good parenting job happens to everybody; if the child has any kind of medical problem, of course it gets worse. Of course once you think about it: the message from baby magazines is that every kid is perfect and has no-stink shit :rolleyes: . I don’t know if I’d be able to raise a “normal” kid… my family is pretty nuts and I don’t consider myself very normal, so probably not, at best I’d be able to raise a nice nerd… I don’t know if I’d be able to raise a Downie… and when I was reading your description of the physical problems I was going “Oh. My. God. NO.”