It is a bad day.

It is a bad day today. Last night, I didn't feel good with my body very well / too good / so good. I had a stomach ache and didn't because I cann't sleep very well. So , I am Because of this, I feel tired today and I can not do anything well.
But, I am very happy because my friends were worried about me and made a meal for me / brought a meal to me (not sure which you wanted to say) made meal to me, and . Some of my friends tell told me to drink lots of water, they make me feel very warm inside.  (Could also say "happy", would need 'warm inside' to make it about feelings/emotions. "feel very warm" would mostly mean temperature)

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It is a bad day.

It is a bad day today.Last night, I didn't feel good with my body, I had a stomachache,because I cann't sleep very well .So ,I am feel tired today and I can not do anything well.
But ,I am very happy because my friends were worried about me and made meal to me, and some of my friends tell me to drink lots of water,They make me feel very warm.

It is a Bad Day 

It is a bad day today.Last night, I didn't feel good. (with my body,) I had a stomach ache and couldn't sleep very well. (,because I cann't sleep very well)  .So ,I am feeling (feel) tired today and (I) can not do anything well. But ,I am very happy because my friends were worried about me and made a meal for (to) me, and some (of my friends tell me to) suggested I drink lots of water. They make me feel very warm.