baby is 3 months old and won't let me put him down !

Ok. I had my in laws come and help me since LO was born. Now since he turned 3 months old feedings are down to 25-30 minutes every 2-3 hrs.   So I let them leave back to home. Now I realize that it's still hard !  I swear he didn't even let me put him down for more than 2 hrs today. It's either a burp or hunger. I have a swing and he won't take that either. I am breastfeeding. Is this normal ???????