EBF baby

Hi breastfeeding moms! Kumusta kayo? My baby is 2 month old, she is exclusively breastfed. Is it normal na I feel tired and masakit katawan. I don't have a fever Naman po it's just that I feel my energy is not enough. Is there anyone who is the same with me? I take multivitamins everyday. Baby really wants unli Dede and unli karga.