We were worried sick! 我们担心得快弄出病来了!
She's my sole concern. 我唯一关心的就是她. How can I just stand by and do nothing? 我怎能坐视不救呢? I can't be that indifferent. 我怎能如此漠不关心. I'm aware of your concern. 我晓得你关怀我.
Thank you for your concern. 感谢你的关心. That's very thoughtful of you. 你太体贴了.
I'll be okay.I can take care of myself 没事,我照顾得了自己.