Can my pig get colic??

I'm raising pigs for the first time and things seem to be going well. However, I noticed that my girl seems to be in pain. She walks fine, eats, and is able to poop and pee easily. But when standing, she is hunched up and prefers to spend her day curled up. And when I felt her tummy it's super tight. A friend suggested it might be colic but he has never raised pigs before. Any suggestions would be greatly appreciated.

Hey, Holly, I'm not a pig expert but pigs can get colic. What kind of pig do you have and can you tell us about diet? Age would be helpful as well.

--JS

she is a york/hampshire mix, 15 weeks old. i have her and her brother pelleted pig food from the local farm store and give them garden scraps too. tomatoes, squash and pumpkins so far.
i did leave comfrey leaves in her trough on wednesday and they were eaten by thursday. her brother is a bit larger than her and is always more active than her.

Just so you know, my level of knowledge is based on growing up in a farming community and working in a farm store while I went to college. I'm by far not a good source of info.

Hopefully I'm about to say something dumb that will trigger a response from a wise person (Walter? Where are you?).

Two things I understand about problems with pig gastro-intestinal problems. It's either bacterial or physical.

If your pig was any younger, I'd consider edema. This can happen to recently weaned if I remember correctly. I think up to two weeks after? (Help, smart people)
There's also bloat, but I kind of doubt it since you say defecation is fine.

Sometimes intestines get twisted. This may be to bloat or something else. This is also doubtful since your pig is defecating.

I'm not one to take an animal to the vet, so my action would be to put her on a high fiber diet and nothing else. The pellets shouldn't be a problem, neither should the comfrey, tomatoes and pumpkins.

I also wonder about parasites. You can get a kit to check for worms at a lot of farm stores or the vet.

Again, it would be great if someone more experienced lent their opinion.

--JS

Thank you for your input. I'm hoping to figure it out without paying for a vet. Im beginning to wonder if her back legs are causing her pain. Visually her joints look swollen compared to her brother's. Have you ever experienced possible joint issues with raising pigs?

Holly hows the pig doing?

I'm certain it isn't colic any more. With more observation its a problem with her back legs. Her joints are swollen and she avoid putting weight on them as much as possible. She has been sitting in her trough to eat the last two days.

My guess is a bacterial infection.

Wild guess, but that's all I have.

You can also see some funny behaviors due to sunburn, but I don't think this qualifies.

Thank you for your input!