Sorry to hear ur not sleeping well.
i understand how u feel....when my little girl was born (now 6 months old) i tried to get back into
exercise and good eating after 6 weeks but i just couldnt because i was so tired from waking up to feed bubs every 2-3 hrs.
only when she started sleeping through the night could i really get onto it.
Like the others said...he needs to get it checked out because there are solutions to this problem.
Good luck!! and sleep well!!!