Bipolarchic14 has a good idea, I think. Or even if such activities are still too difficult, could you establish cuddle time? I don't know how old your kids are to know if they'd still like that, but at least it would be physical closeness. Could even be sitting next to each other on the sofa watching TV. I think kids are stronger than some give them credit for. They are surely concerned about you and want to give back a bit. Have you talked to them about how you're feeling? I think many kids appreciate when parents explain situations. I think they understand a lot more than is suspected.