Hi! I just got this kitten yesterday and he is REALLY small I don't think he is older then 5 weeks. He has fleas (I gave him a bath with lemon juce and a mild cat shampoo and then combed him with a flea comb). Is there anything else i can do for him? And it looks like he has blood in his poo!! Is there a chance that this is due to the change of food? I am VERY worried about him because he is so small. I plan to take him to the vet asap but is there anything i can do in the mean time to help this litte guy out? thank you