1. The sentence 我发现我变胖了，胖到七十几公斤 literally means “I found I have become fat, fat to seventy how many kilograms.”

2. 像是 and 像 are different ways of saying the same thing.

3. The speaker uses 少 and 多 to emphasize doing an action less often and more often respectively in 少用楼梯等等, 少吃一点零食 and 然后多吃蔬菜沙拉跟水果.

4. The speaker uses the “a little all no” sentence pattern to say 你说的一点都没错.