My 16 weeks old girl baby has not been drinking enough breast milk for past 3 days. Before that she usually wakes up every 2 to 3 hours during night and takes a good feed. The diapers will be full after the feeding. But for past few days she is not drinking enough milk, she is so sleepy and drinks very less milk and sleeps. The diaper is also not wet during night. In day time, i am forcing her to drink more milk but she looks not interested. What's the reason. Can someone pls help. My family says it is time to start solids for her. What should I do?