Postnatal depression in dads

My little girl was born a week ago and her dad has been amazing, however, I am concerned he has postnatal depression. The birth was traumatic and he thought they had decapitated her with the forceps. She came out floppy and unresponsive. Our baby has had a bit of a cold and last night he became obsessed with listening to her breathing, and concerned about her rolling onto her side. He said he was doing the 'night shift' to allow me some solid sleep as I haven't had any in over a week. However, when I woke up I found him surviving on ADHD medication, boost and tea. He was obviously over tired and still obsessed with her breathing. We have the midwife visiting today, so I will as her advice before calling the GP (they only do same day appointments) as I don't want her around sick people. However, I am concerned about my partner. What help is available for dads? Edit: I will add, he is also on the autistic spectrum