Sick and tired (This is not incorrect, but we usually use "sick and tired" as an idiom. I think the French equivalent is "en avoir votre claque"?)

Hi everybody, today I'm still a little bit sick. I've got the flu. Yesterday I was totally stuck in the couch. I didn't sleep well and I coughed (sounds like you just coughed once, "I was coughing" is better).
Today I feel better, I'm still coughing but I don't have a headache anymore.
My 2 year old daughter is sick too but less than me. I'm glad, I don't know how she'd have handled the pain.

I'm on vacation so I don't have to go to work and I can't take care of me at home.
I've got the impression of being worse at English at these times? I don't know why? Sometimes I think about that because I think I haven't progressed.
My post is short today because I have a ton of things to do today. (Only one "today" is needed) I hope you guys will have a great day today! See you!