adjective / noun
sore
SOR/sɔːr/
Painfully tender from injury or irritation.
The runner gently touches a sore calf after exercising.

Etymology
Old English sar covered both bodily pain and sadness, so sore's physical and emotional meanings share an old connection. The later sense 'angry or irritated' extends this language of hurt to resentment.
In context
and it hadn't healed I was admitted into hospital and that's when they told me it was an ulcer most painful experience of my life yeah it was just so sore
More examples
- Warm tea helps soothe my sore throat.
- Her shoulder feels sorer whenever she lifts her arm.
- The stiff shoe rubs against a sore on his heel.
Forms
sore · sorer · sorest · sores
soreness noun — Painful tenderness from injury, irritation, or strain.