As a recovering anorexic I eat what I fancy.  If that's junk then it's what has kept me alive.  From age 3 my Mum fed me chocolate buttons or those buttons with 100s/1000s on  

.  Chocolate is good for us!  
May I give your GP a  

 (oh I do love these .........  

 )
Which probiotics have been suggested, his thinking may be to line the digestive system?  Did he suggest why?  I use milk of magnesia liquid occaiosnally as well as 'omeprazlol' as reflux can become problematic as muscles become lax  

.  
Chicken curry - not hot - is soothing.  As is chicken soup: a Jewish recipe to heal all ills.  Apparently.  MayB look it up on the internet, there are certain 'properties' in chicken that can help.  However, again, when nauseous  

When I think of what my Grand parents ate: lots of stooge, bread with dripping, meat and 3 veg with gravy; suet puds.  They worked it off, unlike our sedentary life style where those types of foods may sit on the waist line  

.  Lots of spuds.  Fresh fruits and veg as everyone had a garden in the countryside, which was taken to towns weekly.  Seasonal too.  
Have you thought of trying baby food which may be less 'smelly'.  Or protein shakes a few times a week?  It's about getting anything inside you to line the gut, so if you wake in the early hours hungry: then eat ;-).