Hi stretch, I'm sorry you got off to a rough start with the new snake. I don't keep BRB's but let's troubleshoot the basics. What are you using for a heat source, and is it regulated by a thermostat? How old and how large is the snake? What are you feeding it and how often? Are you feeding live or f/t? I'd definitely suggest waiting 10-14 days after consecutive regurges. I hope you get him back on track soon. Keep us posted.
I use heat tape with a term in a rack. It's a baby, got it at the Tinley expo. Mouse fuzzies every week. F/T, thankfully I only have one snake that refuses them. I warm them on spare heat tape to bring them to live temps.