お心遣いありがとうございます。
I thank you from my heart―thank you from the bottom of my heart―thank you cordially.
Thank you for looking after me.
I thank you for your kindness.
Thank you very much for your kind consideration.
Thanks so much for your good thoughts.
Thank you for looking after me.
Thank you for your kindness when I was ill.
Thanks for letting me know.
I wish to express my appreciation for your kindness.
Thank you for your commiserations.