Thank you everyone for you kind comments.
We got him home last night but he had to go back this morning to finish his drip they did not want to keep him overnight because of stressing him out.
They still do not know what is causing his pain, it could be muscular so they are going to try him on tramadol today to see how he tolerates it, trouble is he is so tiny only 2.5 kilos.
Hopefully getting him back at 4pm.
polly xx