Formula

My son was born on June 4, I breastfed for a few days and he wouldn't latch on. We have been giving him enfamil inspire since then, for the past couple days he has been going through times where he is gassy and he acts like his belly hurts. I've tried to burp him more through his bottles and it doesn't seem to make a difference. He is still spitting up more at times and gassy at times. What do you guys think? Has anyone ever used the enfamil enspire gentle ease formula?