Rob Kardashian’s latest split from Blac Chyna may be his toughest yet — and his famous family is worried that it will be his health that’ll take a hit.

“Rob is not taking this well,” an insider tells Hollywood Life. “The latest issues with Blac Chyna have totally derailed him.”

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The 29-year-old new dad has faced a series of health issues relating to his weight gain; back in December 2015, he was diagnosed with diabetes, though Chy, 28, later helped him manage the chronic condition by helping out with dieting and exercising. But, it looks like all his hard work may soon be lost.

“He’s back to emotional eating, which is dangerous for his diabetes,” the source continues. “His family’s so worried about him. He could end up in the hospital over this. They’re very scared for him. His health is a real issue.”

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Rob and Chyna have certainly experienced their ups and downs since first hooking up in early 2016. By April, they were engaged and the following month, they revealed they were welcoming their first child together; their daughter Dream was born Nov. 11.

Just weeks after her arrival, the two got in a huge fight and called it quits when Chyna’s private messages revealed that she was “using” Rob for fame, and she labeled him “fat, lazy, and insecure.” Shortly thereafter, she left with her kids and all of their belongings and seemingly moved out of the house — though they later reunited.

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Another source tells People that this time, the couple is really done for good — and they’ve even canceled their wedding plans.

“They split a while ago. The wedding plans are off,” the second source says. “They are both trying to be mature about it. It was less dramatic this time.”

So far, neither Rob nor Chyna have commented on their relationship status.