My 5 month old had been taking 7 to 8oz of formula 5 times a day for the past few weeks (since I stopped breastfeeding) but for the past 5 nights has started waking at night again and taking another 7 to 8oz - this is a lot more than the guideline amount stated on the formula (not sure how important those guidelines are?). He shows an interest when we're eating (but then shows an interest in a lot of things!) and I know the guidelines are to wean at 6 months but just don't know if I should just keep giving more milk (can I overfeed him with formula?) or consider weaning early if the signs are there?