I need a more specific hint for pain. Thank you :)
For deceit: Yes to your question. I tried manipulating the cave painting, so the model for the god of deceit might resemble the "replica" but nope. Do I miss an item that I should have?
Pain: what if the pain is caused by a tooth, rather than being a toothache?
Deceit: you have all the objects you need. You only need to add something to the projection on the wall to make it look like the painting behind the bush.