Baby poop after solid

Ever since my baby started solid, her poops are not soft. They come out in small pebble size. Sometimes medium size and sometime can be long. Baby will cry to push the poop out. Like cry cry. Loud cries which is not her usual. She poo 2-3 days. Baby is 8mths. Baby drinks water and milk well. Eats about 2 times a day now Any mum experience this? What should i do. Is it normal?