My Borneo girl twitches when she gets excited about food ! It is pretty cool to watch. She reminds me of a little kid about to get a candy bar or some ice cream.....

She never twitches her head , just her body . It's like she is breathing really heavy with excitement....

When she does that, look out ! She means business. When she isn't in feeding mode, she is a sweet liitle baby.

I see it every time I feed her. I am NOT telling you that this is what YOUR snake is doing, just saying that my Borneo behaves this way at feeding time.

Hope this helps.

You might try an experiment, try feeding her and see if she " twitches" when she sees/ smells her food.

Yosef