Overwhelmed

Now my three month old has been struggling for over a month now and its been a lot of tears wondering if he has injury from rotavirus vaxx, if he has a bad cold, if he has reflux, if he has thrush or even all of the above.

One of his stool tests came back positive for lactoferrin. I did a lot of research and found it could be a false positive as lactoferrin is in all breastmilk and my baby is breastmilk only. Does anyone know about this? Id still wonder about his mucousy stool but i dont want to think he has inflammation or some other disease????