Formula

Heyy momma's. Need some insight/advice. My son was born January 23rd. We breastfed for the first four days but stopped due to latching issues and me having ppd. He's already been on two different formulas, the first one (similac sensitive) made him super constipated and now this one (similac total comfort) is causing diarrhea and a lot of spit up. Have any of ya'll gone through this? What finally worked?