my child boy age 2 year 7 month weight 11.8 last one day he says back pain also toilet not clear also potty not happen last 3 days what can I do

A. You should get examined with your doctor to know exactly what is the problem this it would be difficult to figure out what is the situation it could probably be to constipation or sometimes in digestion but you need to be more sure about it after getting it checked with your doctor