Growth spurt?

i think caleb may be going through a growth spurt right now. he is acting hungry allll the time and his sleep schedule is way off. he normally sleeps from 9pm to 5am, eats for a few minutes, then goes back to sleep for another hour or two. he has been waking up once or twice at night for the last few nights and he hasn't done that for over a month. his naps are off too. i don't have him on a strict schedule but he normally has a pattern throughout the day. he'll take little cat naps instead of his usual 1 to 2 hour naps. today he was so exhausted but wouldn't go to sleep. i was rocking him and singing to him (which normally he loves) and he just looked up at me with these watery eyes and sad little pout and cried. i felt bad for him. i knew he was tired. the only way i could get him to sleep was to put him in his swing. he's going to wake up any minute now and i know he's going to be starving. i'm trying to drink lots of water so my milk supply can keep up with him! i'm hoping this is just a growth spurt because he is just not acting like himself. my poor little baby. :(