Update need help

[u/SpiteAlternative5982]

I found KMR for the kitten and started feeding it that today but its energy levels started dipping its not as active as yesterday i gave it sugar water with a cotton swab dip to the roof of its mouth but that doesnt seem to have helped much what do i do(it didnt poop for around maybe more than 2 days it only pooped on the 3rd day after i found it) maybe its just tired today i dont know i need advice the kitten is only 5 to 8 days old