Allergy?

Am

My baby is 10 weeks old and formula fed with kendamil. She's always had very loose watery stool and will always poop as she's eating which doesn't bother us, we just change her after each feed and when needed. She also sounds a bit congested at times but not all the time (not sure if this is just winter effecting her). She'll throw up occasionally but it doesn't seem to bother her and I never thought anything of it I just thought it was where she guzzled down her bottles (even though we try to slow her down). She's had no other problems, sleeps well and rarely cries. I read someone else's post about cow milk protein allergy and it sounds a little bit similar to my baby but she doesn't seem to be suffering. Do I mention it to the dr anyway and get her milk changed or can I just leave her be?