| significantly | 3 | degree |
| over the years | 3 | temporal |
| symptom → can → fluctuate | 6 |
| symptom → fluctuate over → time | 3 |
| symptom → fluctuate in → severity | 3 |
| negative | neutral | positive |
| 0.389 | 0.581 | 0.030 |
| Raw frequency | 12 |
| Normalized frequency | 0.233 |
| Modifier score | 0.500 |
| Perplexity | 29.713 |