DOUBLED milk intake??

Okay mamas!! My little one has been nursing every night before bed.. we've had some weight issues and so I then started pumping and then adding forumula to make a 22 calorie bottle per doctor orders to ensure he is getting what he needs... and well let's face it, I have basically been nursing every hour to hour and a half (more so every hour) unless he is napping or sleeping. Well.. I would pump a 4-4.5 ounce bottle and off he would go to sleep.. 7/8 hours... past two nights... I pumped 5.5 ounces and then mixed in my formula (i add a touch of water to mix it up since I can't shake breast milk) with the powder and the little bit of water it equaled out to 6-6.5 ounces. Fed him. He was stilllll hungry, I nursed him (he only drinks my let down and then he is done) so that was maybe 3-4 minutes.. he wouldn't settle he was still rooting, went and made a 2oz bottle he then chugs it down (maybe half an ounce left) and nowwww, he has a tummy ache!! 🤦🏽‍♀️ so.. we rock and he is upset so I lay him chest to chest and he settles and just lays there. I rock him for about 15 minutes and he is finally drowsy and wants to be in bed..so off to bed he goes.