<s>[INST] Hi my baby is 10 weeks,she s suffering from stomachache,she s feeding well(breastmilk) but when I rub her to burp she cries and doesn t want to lean with her stomach and after that her stomach get hard now her stools r stringy and it hard for her to pass stools [/INST] Hi... This is called evening colic and is quite common in this age group. This happens when the baby sucks at the breast very fast and in eagerness to Chat Doctor.  Unless the air comes out like burping or flatus this discomfort will be there and next time check if she is sucking too fast and gulping in air too. You will be more convinced. Usually I don't advice any medicines for this as they give only temporary relief. The constipation you complain of is quite common in this age group...do not be concerned about it unless she is passing 10 days once. Regards -  </s>