Bloating Problem, HELP!

So my year and a half year old female ball python has been bloated an awful lot lately. I have the right temperatures and have been keeping a fairly consistent humidity. I feed her a mouse every week and she doesn't have any problems with accepting food or pooping regularly. I just don't know why she would be bloated, and stay bloated. At my teachers suggestion I'm now giving her a vitamin/electrolyte supplement water in hopes that it will help her. Also, a few days ago, one part of her body towards the middle was bloated and red. I soaked her and it went away after a day but I'm still concerned.

Any suggestions would be greatly appreciated since this is my first snake and I'm terrified that I'm messing something up.
Also, what's the average size/length of a one and half year old bp? I just don't know if she's growing at a good rate or not...
THANK YOU SO MUCH!!!! 😄

Are you sure its a she because when it comes to size that matters. However all snakes grow at different rates and its hard to give you a good estimate. Knowing the sex and the weight of your snake would make it easier to say if your snake is within a normal range for its age.

I think some pics here could really help. My first though is that it has a case a sausage butt. The movements it has had, are they regular sized and composed of feces and urinates?

The lady at the pet store I got her at said that she was female. And yes, I know a pet store is not the best place to get pets but she was perctly healthy for the first year of her life.Since I don't have much to gauge on I'm not sure if her feces would be considered 'regular sized' but they are all about the same size on average. She also just ate a small mouse and fuzzy last night.

Unfortunately my phone is not cooperating with me right now so I can't post any pictures. 😣
So I shall try to be as descriptive as possible. The front third,maybe half, of her body looks normal but then she gets really bloated and a lot lighter in color. There were some small areas that were extremely bloated and red last week but it went away after a day or so.As of today, she is bloated and squishy to touch/hold.

Sorry I can't give more than that, I just don't have the capacity at this time...

Im not a bad owner, just inexperienced BTW..