Lj- Sounds like he's a little over stimulated Try using your pram with a mat underneth, so theres a slight bump while pushing back and forth. Sounds silly but my health nure gave me the tip when Annabelle was little and it works!
Also you would have been given a health nurse line that you can call 24/7. Do it! They were my life savors with Annabelle
Try the pram Also maybe a dummy....