I know the feeling. I have three tamagotchis connected together, and I lost them when they fell out of my coat pocket.
Fortunatly, I managed to find them and get them back within 29 hours of their going missing, and due to a minor miracle, only one of them had died! Now instead of having 2 5th generations and a 3rd generation, I have a 5th, a 3rd, and a 1st. But I think it's just fantastic that ANY of them managed to survive, and I am extremely happy. wOOt!
wow. I've lost my Gen2's..... but I've got my Connections now, thank goodness! but poor you! I know how it feels to lose them... *sniffle* it's horrible. keep searching, maybe if you live with anyone else they moved it? I know in MY house unless something is in your room, it's gonna be moved and eventually lost. ugh. keep searching... you'll find them! but it's odd. I lost my first GBA that way! had it on a table, then *poof*! it's gone!