Poor baby J! Fans have literally been watching Tori Roloff and Zach Roloff's son grow up right before their eyes, both on the Roloff family's TLC reality TV series Little People, Big World and on Tori's Instagram. But the TLC cameras aren't always around to catch everything, so Tori took to her Instagram to reveal her one-year-old may have a fractured arm.

"Nothing slows this kid down… the past 24 hours have been pretty stressful but this kid has shown us time and time again just how much of a trooper he truly is," the 27-year-old wrote on Monday, June 4. "He hurt his arm yesterday afternoon playing and trying to walk like one year olds do. We thought maybe something called 'nursemaids elbow' but after two times of a doctor trying to reduce it to no avail (which by the way is absolutely the worst thing to see your child in that much pain) it could possibly be a fracture but still not sure. So this poor thing is stuck in a splint until we can know for sure."

Fortunately, the accident couldn't keep him from smiling. She added, "He has not let it slow him down though and is back to his happy smiley self-thank goodness! Thank you for your thoughts and prayers for baby J! Little man is on the mend and will be back to conquering the world soon!"

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Nothing slows this kid down… the past 24 hours have been pretty stressful but this kid has shown us time and time again just how much of a trooper he truly is. He hurt his arm yesterday afternoon playing and trying to walk like one year olds do. We thought maybe something called “nursemaids elbow” but after two times of a doctor trying to reduce it to no avail (which by the way is absolutely the worst thing to see your child in that much pain) it could possibly be a fracture but still not sure. So this poor thing is stuck in a splint until we can know for sure. He has not let it slow him down though and is back to his happy smiley self-thank goodness! Thank you for your thoughts and prayers for baby j! Little man is on the mend and will be back to conquering the world soon! #babyjroloff #zandtpartyofthree

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Over the weekend, Tori broke the news that she had to rush her son to urgent care. "All better now. This kid gave us quite the scare tonight," she wrote in a series of video and text posts on Instagram stories. "We think he might have dislocated his arm but all good now, just sore. Learning to walk is hard business for a one-year-old."

It seems like this was the first time Tori and Zach had a big health scare with baby J, and the new parents handled it with ease. Over the past year, Tori has really blossomed into her new role as a mom and she gushes over motherhood every chance she gets on Instagram. Just two weeks ago, she reflected on how blessed she is to watch her son grow up.

"Watching my son adventure and explore on a farm and getting to experience this life with him is such a gift. God is so good. I’m so thankful for this extraordinary life he has given us," she wrote in the caption of a photo of Jackson sitting in a red wagon playing with a baby chicken. Fans flooded the comments, and one fan brought up a very good point. "How old was Zach when he learned to walk? I know it's a bit more difficult for them," the fan wrote.

Baby J and his dad Zach both have achondroplasia, which is the most common form of dwarfism. Achcondroplasia can affect walking in babies because it can lead to weak muscles or bowed legs, which both make it harder for them to walk than it would be for average-sized children. But it looks like Jackson's mom and dad are making sure he's working towards reaching his walking milestone safely.

Little People, Big World airs Tuesdays at 9 p.m. EST on TLC.

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