Thanks for the conforting words you guys!!! But...
The thing is that in my frist and second grows, around the 6th week the plants started to show these same signs! So i thought something wrong was going on. Did some research and took the risk of flushing my babes with a mild N solution (7-4-4) to see what happens!!!
Anyway, we all learn from our mistakes!!!
Ill be moving to a bigger place in a couple of weeks, there ill be able to grow my next crop in bigger pots, i hope!
In a few days ill post new picks, so you guys can see what happened with my present grow.
Thanks for the replies!!!