Force Feeding another way.
Hi Shaky.
I don't advocate force feeding over any other method you've tried, but it is the only thing we are left with sometimes.
I have a male Silver Queen that ate a couple of times after I got him and then refused to eat after that. (I am convinced that a strange, new environment will cause some of them to stop eating.) Anyway, I was at my wit's end. I had tried every conceivable trick in The Book (Kathy's, that is). I emailed Rich. I emailed Kathy. I followed every suggestion. This snake did not want to eat. Then, one night, I got mad. I had had enough. Out of desperation, I got the smallest pinkie I could get and, holding the snake like it was a pit viper with my left hand and the pinkie with my right hand, I said, "Open up snake!" I pried the snake's mouth open with the pinkie's snout and shoved that rodent child down that snake's throat. When the pinkie was half way into the snake's mouth, the snake took over and swallowed. I've had little trouble with him since, and when I do, I pick him up and say, "Remember that night in the kitchen? You, me, that pinkie?"
There have been other cases with other snakes in my collection where I have gone back the next morning and the pinkie is still there in the food dish. If they are not in shedding, then I will take out their hide(s) so there's no place to run and they will discover the food and eat it.
Then, on the other hand, I had this other little snake that was constantly on the move. She stopped eating. I went through almost all of the tricks before getting her to eat. Fortunately, she liked pinkie heads. After that, she was no problem at all for five months. Then one day, during my usual post feeding check up, I went to check on her and she was dead in her hide. There was no obvious cause of death, but I suspect she just couldn't settle into her new envirnoment. Constand roaming around and planning the Big One, may be a sign of being too stressed.
Then again, I may be projecting reasons onto the snake's behavior.
Good luck in getting your snake back on line.