Soy formula

Faith

So my 4 month old son has always had gas issues from the beginning. He was mostly breasted with supplementing with similac total comfort. He’s always been a very fussy baby and very hard to keep happy. He also doesn’t sleep well. After my dad watched him several times he was convinced its the formula. He is on all formula now as of a two weeks ago. I mentioned it to the doc today at a sick visit due to this cold/virus he has had for a few weeks and she was just very casual about starting him on soy instead to see if it helps. I told my husband what the doctor said he brought up the whole estrogen thing and how it’s going to mess up our baby and so on. Now I’m doubting everything and wondering if my babies doctor made a good recommendation or not. A little worried now. Thought? Opinions?