Babies with reflux do two things... avoid food, or eat more. If he does have reflux then hopefully your Dr will prescribe some meds to help him. I would say its a bit unfair on the little man to try and turn his day around until he gets some help.
Here are a few pointers though to try and help him. Which may ease things and help a little.
Positioning After feeding
Keep him upright during and for at least thirty minutes and try to keep him as motionless as possible for at least thirty minutes
Car Seats
Some car seats position baby in such a way that they hunched and slouched over, putting added pressure on their tummies which can increase reflux episodes.
Sleeping Position
As with positioning after feeding, keeping him propped during sleep
is essential. It can help reduce painful reflux episodes and reduce the risk of aspiration.
Front vs Back
On back: propped up to at least 30%, Having said that, many babies with reflux prefer sleeping in the prone position (stomach), also elevated
Carrying
Try carrying him around as much as possible in a baby carrier through out the day. Carried babies tend to cry less and crying will make reflux worse, plus, it keeps him upright.
CLOTHING
Avoid Tight Clothing, particularly clothing that's tight around his tummy, can make reflux worse by increasing pressure Make sure he stays in loose fitting, elastic waists whenever possible.
Thickening
to help weigh the milk down and prevent it coming back up. See Dr for something like Gaviscon
Feeding Time
When and how much a baby is fed can also have an impact on their reflux. Smaller more frequent meals through out the day work much better than larger, less frequent meals. Also, avoid feeding right before bedtime, particularly if the he is already a poor sleeper.
Breastfeeding
If you are breastfeeding, try eliminating the foods that can make reflux worse. Dairy products are a big offender, as is caffeine, fatty foods, spicy foods, citrus fruits. If eliminating these things seems to help, you can slowly (about one thing a week) start to introduce one thing at a time back into your diet and watch his reactions. This will help give you an idea of exactly what was making the reflux worse, so that you (hopefully) don't need to give up everything you love, just one or two things.
Burping
Stopping to burp frequently (at least after every ounce) during feedings can help.
Provide a soother (i did not do this one as DS is a thumb sucker)
Sucking on a dummy, can increase saliva production. Saliva is alkaline which can help neutralize some of the acid that may come up.
Infant Massage
Try infant massage, it's been shown to improve digestion and will help relax baby. - I enrolled in classes ran locally by HV's, not sure if they do this in your area.
HTH, and hope your little man gets some help soon, and you get some rest.