How to stop an M-shift?

Hey, I'm kind of hoping for another therian or whatever you want to call yourself to answer. I'm a therian or otherkin since I'm not completely sure if I'm a real animal inside. I'm not too concerned with the terminology at this point I just need help from someone who might know about this stuff. I've been having an M-shift or Ph-shift (again don't care much for terminology) wherein I feel phantom limbs like ears on top of my head and a tail. I've been walking on my toes for the last few hours just because it feels so weird when I don't. I feel like my body doesn't match up with how my own image of myself is and it's making me feel like I have dysphoria of something. I want to make it stop, it's depressing and I can't keep my mind off of it. Every time I try to wag my tail I'm reminded of the fact that I don't have one. How do you stop an M-shift or Ph-shift?