My 10 week old will not sleep on his back day or night. He's contact napping every time as he grunts and flails his arms and legs about when he's on his back continuously and then gets agitated. He will settle for all of about 30 seconds until he jolts again. He sounds like he's uncomfortable but I don't know if it's normal? We've tried swaddling and he hates it so he ends up sleeping on me every night but 10 weeks in and we need sleep!