I feel so bad for Kurt. If, as they say, all physical things are ruled out i really think it is anxiety/burnout like symptoms.
Think about it, in such a short time he got together w Sarah, they had a baby, moved houses, his career kicked off, he now has to build/renovate a house next to having a job and a kid (i know this can be A LOT), plus, there is lots of backlash recently (and not to mention, your whole life is on the internet). I can understand that puts a lot of stress on him.
This combined with having a partner like Sarah who is dismissive of his feelings / mental health issues in general (at least this is the vibe i get from her channel, and she herself defff has issues considering her body image and food). She is very controlling in lots of aspects of life and doesn’t really consider his needs. I dont feel she is a supportive partner (she might want to be, but i don't think she truly understands what he needs and i don't think she can give him that bcs of her own issues.)
Like saying ‘he’s been surfing and meditating but it didn’t cure it’… … wtf. These are all just bandaids if you do not address or remove the true stressors and hell, can even feel like extra things on the to do list (i NEED to relax)
Also, if you look at Kurts old instagram, you can see that his life changed so much. He did martial arts, had lots of friends and went out to party etc. I’ve always felt he is different than Sarah as he’s more outgoing, relaxed and has true hobbies and passions. It seems to me that Sarah is not truely supportive, only in a superficial way (like coming w him to the photoshoot and saying he has to go surf etc). I feel bad for them both because i don’t think Sarah understands what she can do and is scared Kurt will leave her. (since she is dismissive, and tbh i feel like if Kurt heals and gets into therapy he will see the light about their unhealthy relationship)
But please, if Sarah or Kurt read this, try to go into therapy, you might both benefit from it.