hello all!just got done doing my prop/npp shot in my glute.i'm using a 23 ga 1.5 inch pin and i go up to the hilt.i aspirated...everything cool and then proceeded to inject.i always let the pin in there for a few seconds to squeeze out the last bit of gear.after i pulled out it was like a second till i could grab my alcohol pad and press down.right before i pressed down i noticed it looked like some juice had come back up..not a lot but it was noticeable.i never had this before,anyone know why this occured and did it happen to any of you all?thanks!!...repped