.I'm not making this up..I'm not making this up.

.I'm not making this up..I'm not making this up.
.I'm not making this up.
.I'm not
making this up.

.I'm not making this up..I'm not making this up.
make up本身有好多种意思,用处比较广.这里主要是：
To devise as a fiction or falsehood; invent.
中文也就是编造.例如：make up an excuse (编个借口).
I'm not making this up.一般就是指：这不是我编的（言下之意,是真的；或者消息来源不是我）.