Baby frequently stool. Please suggest.

Dear sir 15 days before my 4 and half month baby is sound ummha ummha . I saw dr and dr give colic drop. But its not worked. Then i again saw a diffrent dr he gives repiduse syrup and says baby is constipation. Its works for 3 days and again baby start sound i finish dose. But not working. Then i saw homeopathy dr and he give gripe drop . Then baby start frequent stool. I saw again the 1st dr i visit . Dr ask for stool test. I do that and dr says its ok and give septran Suspension with eupeptine drop with sporlac powder. Its the 4th day my daughter take the course. But no improvment she continues stool watery after  each feed ( she takes only mothers milk) i again change the doctor and today visit a new dr. The new dr says its viral diariah. And give some Medicine dont what happen. Sir i already give Rotavirus vaccine to my daughter. Then what is going on my child is active but i m afraid. Please read my full problem sir please give advice what can i do now please suggest ..