pitmanr2003

I have a baby corn snake that we purchased about 3 weeks ago. Pretty sure its a female. Doesnt really matter to us but that what we are going with lol. She was super chill first couple weeks we got her and has ate frozen pinkies about every 5 days with no issues at all. Started last week she is kind of aggressive when you go to get her out. she strikes and even bites some times. At first we took it as she is hungry so fed her. still same thing. Once you get her picked up she is chill and seems to like to be held. I noticed the other night that she has a small clearish bulge at her vent. Figured maybe she was ready to poop. 2 days later and its still the same. One other thing is her color is duller than it was which i took for she is about to shed. almost 2 weeks now and still same and i have never seen her eyes get hazy like snakes i have had in the past. Let me know what you all think it could be. Like I said other than the aggression and color she seems happy