Can you detail your set up for him, your temps, and how you're measuring temps (maybe even post a pic)?

How long have you had him? It sounds like he's a very new pickup, and sometimes the stress of the move will make them act out defensively (ie balling up or striking). I usually leave new additions be for a few days (besides to clean out substrate/water changes) then try feeding. After ~3 successful feedings I then start to work with the snake: ie holding.