Over and over in my mind preside
the dark and somber moods Love puts me through.
Self-pity broods, so I have often cried,
“Alas, do other people feel this too?”

[Spesse fiate vegnonmi a la mente
le oscure qualità ch’Amor mi dona,
e venmene pietà, sì che sovente
io dico: «Lasso!, avviene elli a persona?»]

Dante Alighieri (1265-1321) Italian poet

La Vita Nuova [Vita Nova; New Life], ch. 16 / Sonnet 7, ll. 1-4 (c. 1294, pub. 1576) [tr. Frisardi (2012), ch. 9]
    (Source)

Dante in the painful, self-pitying throes of unrequited love for Beatrice. "Nobody has known such tormented love as mine ..."

(Source (Italian)). Alternate translations:

Many the times that to my memory comes
The cheerless state imposed on me by Love;
And o’er me comes such sadness then, that oft
I say, alas, was ever fate like mine!
[tr. Lyell (1845)]

At whiles (yea oftentimes) I muse over
The quality of anguish that is mine
Through Love: then pity makes my voice to pine,
Saying, “Is any else thus, anywhere?”
[tr. Rossetti (c. 1847; 1899 ed.)]

Full many a time I ponder on the drear
And heavy hours which Love doth make my doom;
And then I cry, "Alas!" in piteous cheer,
"Was ever fate like mine, so wrapt in gloom?"
[tr. Martin (1862)]

The dark condition Love doth on me lay
Many a time occurs unto my thought,
And then comes pity, so that oft I say,
Ah me! to such a pass was man e’er brought?
[tr. Norton (1867), ch. 16]

Many a time the thought returns to me:
What sad conditions Love on me bestows!
And moved by Pity I say frequently:
"Can there be anyone who my state knows?"
[tr. Reynolds (1969)]

So many tmes there comes into my mind
The dark condition Love bestows on me,
That pity comes and often makes me say:
"Could every anyone have felt the same?"
[tr. Musa (1971)]

Time and again the thought comes to my mind
of the dark condition Love imparts to me;
then the pity of it strikes me, and I ask:
"Could ever anyone have felt the same?"
[tr. Hollander (1997) , sec. 7]

Often it is brought home to my mind
the dark quality that Love gives me,
and pity moves me, so that frequently
I say: "Alas! is anyone so afflicted?"
[tr. Kline (2002)]

Frequently there come to my mind
the puzzling characteristics Love gives me,
and I feel pity for them, so that often
I say: "Alas! Does this happen to anyone else?"
[tr. Appelbaum (2006)]