Hunger

Question
I have a lizard skink and i caught it 3 days ago it will not eat.
do you think it ate then.
i don't have a heat lamp.
why wont he eat

Answer
 It's called relocation stress.  Many reptiles go through this when suddenly placed in a new environment, especially wild caught reptiles.  You did not give me a specific species so all I can tell you is without proper lighting or UVB source, or knowing about his species and particular diet, it would be best for this animal if you put him back where you caught him.