gastro in a 7 week old Im pretty sure jack has gastro. For 2 days he's had diarrhea and just last…

gastro in a 7 week old

Im pretty sure jack has gastro. For 2 days he's had diarrhea and just last night has started throwing up most of his feeds. Ive been giving him hydralite but he doesn't like it. Im worried he's going to get dehydrated. When should i take him to the dr? Its sunday so i dont feel like dragging him to the ER if i dont have to