what should I say, when the colleague said "you are my hero"? I had expedited the finished date for my colleague, and she said "thank you , you are my hero" in email. what should I say?

deluge in shanghai this morning, dark clouds were gathering in the sky. The breeze makes me very comfortable. it is not as hot as last week. I am on my way to the company. Suddenly , the big raindrop is falling down from the sky. all the people who walk along the street run into the stores or stand under the sun visor to keep dry. The water increased a lot on the street. When the car goes by, the water splashes very high . There's no people in the street instantly because even if you take a umbrella you couldn't keep dry.

stiff neck can I say " I have a stiff neck "? If not , what should I say . I want to express that i have stiff neck, and can't move/ turn left or right easily.

Shenyang- a northeast city of China shenyang is a city which located in northeast China. Most of people work in state owned company or factory. The people looks much happy and less pressure compared to Beijing and Shanghai. The economic is not so good these years. And it is not so easy to find a job. Though it is the capital of Liaoning province, the food is cheaper , the traffic is cheaper and the real estate cost is also very cheap compared to big city. it is also the home of emperor Nuerhachi . The people is the bese scene of the city. it is better to visit there in winter. The snow is beautiful. And there are lots of spring club for your enjobying.