Hey now. I just purchased my first ball python recently. it was from a reptile expo in Brentwood NY and it was a very nice looking killer bee/spider morph. I wish I had known about its "wobble" before hand as I would not have purchased it but...

In any case I am now an owner of a very nice yellow and black mouse terminator. He has a ravenous appetite and will stay in his hide for a few days before coming out but when he does he starts to freak out and corkscrew and "stand up" straight to touch the top of his tank then lean his head backwards until it touches the floor and will stay in that position for a minute or two then he will just lay down for a breather and start all over again and this will go on for hours until he tires out and goes back to his hide for 18 hours only to repeat his behavior again the next night. Is this condition severe enough for the snake to cause itself serious injury or possibly accidental death, should I have to consider taking it to the vet and have it put down? I am considering getting a second snake, maybe a Super Pastel or Banana but am wary because I don't know if either of these two species have its own type of genetic abnormalities also? The vendor who sold me the killer bee said that its around 7-8 months old and I have it in an exo terra medium terrarium I think its dimensions are 18"'x18"x12" and am getting ready to move it into a 20 gallon long tank this weekend. Will this glass tank be sufficiently strong enough to handle his wobble once it gets older and heavier or should I think about getting an acrylic tank later to handle its stronger vibrations?