stay hydrated. drink more water, can also consider electrolytes like 100 plus or coconut water. maybe can consider supplements like lactation cookies or legendiary supplements https://s.lazada.sg/s.3fazD
I have the same experience my LO is 2 months and 27 days and suddenly my milk supply drops.
eat soya and oatmeal and food with flaxseed and brewers yeast 👌🏻