outdoor strains are, for lack of better words, "stronger" than indoor strains because outdoor strains can take the stress of uv rays.. since indoors we dont use uv, indoor strains cant be placed outside WITHOUT toughing them up to the uv first... the easiest way i would imagine is putting it in the window during the day so it can get used to that kind of light.. for a week or so... and then transplanting it outdoors.. if you have an outdoor strain already then it could just be weak clones or a genetic problem.. nothing you can do about that.. i would agree your stressin a little much for it being so young.. but i did that the first few times i had grown... just give it time...
i can prolly give you a little better advice if i new wether it was indoor/outdoor strain..