身体不舒服不用I'm uncomfortable.
uncomfortable的用法：肉体上／心理上的一种不便不舒服
After sitting here for hours, I'm really uncomfortable.
坐了几个小时，真的很不舒服。
Could you open the window? I feel a little bit uncomfortable.
你能开一下窗户吗？太闷了有点不舒服。
心理上尴尬别扭不舒服
The way you look at me is making me feel uncomfortable.
你这么看着我让我很不舒服。
生病身体不舒服
1. unwell/sick/ill
be/feel unwell/sick/sill
I was sick all day.
我一天都不大舒服。
I feel a bit unwell. I'm going to call in sick.
我有点不舒服。我打算请个病假。
Jim has been ill since last month.
Jim上个月开始就生病了。
2. under the weather 不舒服
Jane is a bit under the weather. She's not coming.
Jane有点不舒服。所以她不来了。
I was under the weather last week, but I'm feeling much better now.
上周我有点不舒服，现在好多了。