Aww jangan risau sangat, mama! From what I've heard, 4 times a day with loose stools is actually quite common, especially for younger babies, true diarrhea is usually when it's more than 4 to 5 times and very watery each time. Someone in my mum group mentioned that breastfed babies especially tend to have softer, more frequent stools that can look a little alarming but are perfectly fine as long as baby is feeding well and seems comfortable. The most important thing to watch is whether baby is staying hydrated and still has wet nappies regularly. That said, it's always best to check with your paediatrician just to be sure, especially if the stools become very watery or baby seems unwell.