Constipation

Since birth my son has had a soy and dairy intolerance. We have used sensitive similac and gentlease similac when we weren’t aware of this and he continually puked it up. We then started nutrimagen and that helped a bit, but still caused an upset stomach off and on, and skin irritations. We were recommended Holle goat’s milk. It’s day 7 on this and he hasn’t had a bowel movement for five days and his stomach is hard. We’ve done warm baths, bicycle kicks, massaging his stomach, pear and prune juice, and this kit where you put this thing in his anus to stimulate it and get movement. He screams often from the pain and has now started spitting up. We’re waiting on a response from his doctor, but looking for any suggestions in the meantime ..