M.R.
My son had lots of gas problems at around 7 wks as well as acid reflux. I heard Gripe water works but I could never find it, I also tried milicon which did not work so I tried little tummies gas drops and it worked wonders also I changed his formula to Enfamil GentleEase for gassy, colicky babies and I even changed his bottles to Dr Browns which helped tremendously. I ended up w/soy formula after he stopped being so gassy for his acid reflux.
Good Luck and this shall pass.