Stem looks like someone pinched it now the plants drooping

they're only like a week old but one of them just recently drooped down like it was growing straight up then the plant just bent towards the soil like a 90 degree angle.... hard to explain... and a little section down towards the soil looks like the stem isnt as thick
anyone know what this means?!?!

see look how they doing???

Looks like their going for some light, put some more soil with them.

Had one that looked exactly like that curvy one....move that light right over em if youre using cfls, and start a fan out on low for a few days oscillating on them...then as the stems get stronger, put it on medium and leave it that way a while...eventually you can put it on high.OH, And put em each in their own pot before they get too big.

Seperate the seedlings in different pots in a day or 3.
The roots will become tangled and fucked up....And u dont wouldnt want that.
Get more soil up there and move lights closer.
Fan on low ,27/7.
Keep lights either 24/0 or 18/6.
lightly mist each plant once a day for another week and water only when top of the soil is dry and even then,do it gently.
Dont nute untill it is 3 weeks since sprouting.
Give it love.
Do that and you will be fine.
Oh,and keep an eye out for bugs.
Just in case.