Ahhh sayang, memang ada a few of us yang encounter benda macam ni, conflicting advice from different doctors pasal timing IUCD after c-section boleh jadi frustrating, especially bila dah kena push untuk depo yang side effects-nya tak sesuai with you. The good news is doctors DO have different guidelines, dan private vs government hospitals kadang approach berbeza, so the KPJ doctor's input is valid jugak, definitely bagus nak get a second opinion. But the headaches and mood drop tu serious, jadi I'd suggest go back to KPJ or try another private doctor to discuss switching options or whether depo itu memang the best fit, sebab side effects shouldn't make you suffer like this lepas giving birth, kan?