S.:
OMG! Did I write this?!?!?! REally, you and your baby sound JUST LIKE me and mine!!!! Are you living my life in a different world?!?!?!
In all seriousness, I am going through all the above right now also! But, this is my second child (not first like you), so I am a little more relaxed about it-been there before!
My son is 6 mos. old too and waking at night as well, more like around 3 am and wanting to play for 2 hours and then "napping" on and off till around 7:30. He also is "falling" down on the growth charts, and is nursed pretty much like yours is.
Here are some things that might help!
A lot happens around the 6 mos. mark. They realize that they are their own person whom can do things at will (ie: beginning to crawl when they want to move, can sit up or at least pull up with assistance, can scoot, can "talk" easily, etc). Thus, they realize that they don't HAVE TO sleep, but can "play" if they want to. They also use more calories (they are more active). They also now know how to get your attention and don't cry just when they're in true need of something but also when they simply just "want" (but don't "need") things.
DO NOT FEED HIM AT NIGHT WHEN HE WAKES, or he will come to expect it! Try to encourage sleeping (keep things as dark as possible and quite), don't pick him up-let him "play" for a bit and if he starts to fuss, let him cry for several minutes before going in the "help". Then, still don't pick him up, but rub his back (or pat)-no talking. If he still doesn't calm, sill rub/pat and talk quietly or play quiet music (does he have a crib music box-use that routinely to induce sleep). You may can use some of the same routine you use at his bedtime if that includes music or storey or the like. If he still won't calm, consider: tylonol (is he teething), or vapors (if he is congested/allergies).
As far as the feeding goes, does he get rice? This is far more important than baby-food (veggies). Nursed babies need the iron in rice. The rice adds consistancy that lasts longer in the stomach than breastmilk. You can use formula to stay in his stomach longer, but it will deminish your milk supply and rice really is a better option. By this age, according to national reccmendations (I looked it up just the other day), a 6 mos. old should have 3-4 T of rice mixed with breastmilk or formula once to twice a day with veggies only as a "bonus" (not main source). Still make sure he gets plenty of liquids (still around 30 oz.) a day. My son is on the lesser side of the liquids, but his urine is clear and he has never been a real hardy easter, so that is said to be fine!
Also, don't worry about weight %!!!! Your dr. is not worried and neither is mine nor me (about my son)! The reasons: 1) % are based on ALL U.S. baies, nursed and formula fed. Your baby is nursed. Nursed babies usually are thinner than formula babies b/c formula is "generic" to fit a large array of babies' different needs and breastmilk is specialized for your baby (some babies absorb calories better than others and your breastmilk knows your genetic need, thus your baby's need but formula has to have more calories to feed the larger pool). 2) % is just a guide, not something to follow-kids will go up and down in % becaue their bodies don't always follow the norm but grow at their own pace-this is normal 3)As long as he is devoloping otherwise, what difference does weight make anyways-We americans are over-weight in general so if he is on the "lesser" side, that is prob. good-most people (including babies) are over-weight! And nursed babies are less prone to be over-weight children, therefore will be less in %.
Hope this all helps! If you need any further assistance that i can help with, or just want another mommy with a baby boy the same age to be supportive of you, e-mail me any time!~
Best of luck!
All will be fine!
T.