My 7 month old sweats a lot, most especially when feeding, be it milk or food and when he's sleeping. he doesn't nap for longer times and he's up for most of the day but when it's meal or sleep time he sweats. is there a cause for concern?

Hard to guess, but: Some babies sweat a lot more than others. Feeding is like exercising. Younger babies are often overdressed, so they work up a sweat when feeding. Young babies also can't kick off their blankets, so sometimes they sweat a lot when sleeping. If a baby changes colors (turn bluish, dusky, or pale), has trouble breathing (breathing rapidly), or has other odd symptoms, his doctor or the ER can evaluate.