for two to three days
にさんにち
二三日

don't look well
げんきがない
元気がない

probably; maybe
たぶん
多分

for the first time
はじめて
初めて

because ...
〜ので

very soon; in a few moments/days
もうすぐ

... degrees (temperature)
〜ど
〜度

Get well soon.
おだいじに
お大事に

as much as possible
できるだけ

probably; ... right?
〜でしょう

always
いつも

