Chicks struggling help!!

[spear41670]

My broody is raising 8 chicks. They are 2 weeks old now. In the past 24 hours ive had 3 chicks who couldn’t get up and had curled toes aswell. I gave them 0.1 ml vitamin b complex injection and they were back to normal in literally 5 mins. Is this really vitamin b deficiency or do they get back to normal themselves, considering they may have had heat stroke as the temperature reaches 40 C outside as im in asia.Im keeping them indoors btw.They also have these white things on their heads.Are these pin feathers or sign offleas?

 

[the_peanut_coop]

My broody is raising 8 chicks. They are 2 weeks old now. In the past 24 hours ive had 3 chicks who couldn’t get up and had curled toes aswell. I gave them 0.1 ml vitamin b complex injection and they were back to normal in literally 5 mins. Is this really vitamin b deficiency or do they get back to normal themselves, considering they may have had heat stroke as the temperature reaches 40 C outside as im in asia.Im keeping them indoors btw.They also have these white things on their heads.Are these pin feathers or sign offleas?View attachment 2709449

Those are not pin feathers...