My puppy boston terrier is 5 months and I recently left him with my family member to look after him. After returning home a couple of days I found about 8 acorns in his kennel. Im not sure if he pooped them out or vomit them. However the last couple of days he have has been acting very lethargic and vomiting. He also has been pooping massive amounts. Is there anything I can do to help him? I know I should take him to the vet but don't really have the money. Is there anything I can do to help him myself?

No, there really isn't any "home remedy." He has to be checked out. He could have an intestinal blockage, among other things. It is your responsibility as a pet owner, to not let him suffer. He is obviously sick and in pain! Most vets will let you work out a payment plan. Please don't let him suffer like this. Take him to the vet ASAP.