I was thinking the same thing about being weak. I hope that is not the case but from what I know about wild caught GTP and ETB they are not usually little sweethearts. I was first thinking because of the snakes temperament that it could not be a wild caught....I should have asked. Good call hhw.
OP, I think the vet is a really good idea as is biting the bullet and making the proper cage happen now.
I also had no clue BW did business like that I will stay away from them. Ive never used them and now I know I never will.
I wish you luck and Im here to help when needed.