These Days 这些日子; 目前; 这些天; 灿烂的日子;
你的句子：我这些天睡得不好,我想我应该去看医生.
自然是现在时.do not sleep
What have you done these days?
这些天来,你做了什么事?
We never see each other these days.
我们这些天没有见过面.
Jack is away all the time these days.
这些天来杰克老是心事重重的.
Your son's trouble is very common these days.
你儿子的病是目前较常见的.
Are you free now?how are you these days
你现在有空吗?这些天过得还好吧?
具体时态,看句子所表达的意思就行.
通常都是现在时.