I am sorry to hear that you‘re not feeling well. I think you should lie down and rest when you are tired.You should also go to bed early for a few nigts.Do you have a lot of headaches，too？ Oh，that’s too bad.You should see a doctor and take some medicine. Don‘t worry about your Putonghua.You should practice every morning and talk more.It will improve. Don’t study too late.It's bad for your health.You also have a cold，oh，dear！ You should take good care of yourself.
I am very healthy.I hope you feel better soon.
Best wishes
James