I think of ......

[peter7805]

I think of the past days
In the wind the willows float
I think of nowadays
It falls heavily the snows
I walk slowly on the road
Hungry and thirsty in my throat
Now I am sad but nobody knows

[NikolaiI]

I really like this.

[Skia]

I think of how much I like this poem, and how powerful 7 lines can be. :)

[PrinceMyshkin]

Bravo for brevity - and how deeply this goes.

[Haunted]

I bet the hunger and thirst go beyond just a feeling in the throat and you articulated that so well in just one stanza.

[Bar22do]

I think of the past days
In the wind the willows float
I think of nowadays
It falls heavily the snows
I walk slowly on the road
Hungry and thirsty in my throat
Now I am sad but nobody knows

Well, actually your readers now know! and sharing sadness cuts it in half doesn't it.
You managed a lot in these few lines. But, although you've just been praised for your brevity, I'd venture to suggest (but it's only a suggestion) shorten your poem even more, giving up the road-throat rhyme so that the last two lines read:

hungry, thirsty and sad
though nobody knows.

or sth like that. Thanks for your poem.