Feel like , Feel as if
My legs feel like cotton wool.
Alice felt as if / though she was in a very nice dream.
I feel as though I'm going to give it up soon.
I feel like/as if/as though I am exhausted because of doing a lot of exercise
Feel like = want
I feel like a drink, have you got any beer?
I felt like laughing, but I didn’t dare.
I feel like swimming. ( I want to swim )