| Answer | Crossword Clue |
|---|---|
| ULCER | Cause of a gut feeling? |
| ULCER | Cause of a nasty gut feeling? |
| ECOLI | Cause of a bad gut reaction? |
| GISERIES | Exam that might cause a gut reaction? |
| ILEUM | Source of a gut feeling? |
| ECOLI | Source of a gut reaction? |
| DOCTORDOLITTLE | Graduate of a "gut" PhD program? |
| SOT | One with a gut full of rotgut |
| SNELL | Short piece of gut holding a fishhook. |
