Having a sensation describes the experience of feeling something physically or emotionally. There are many synonyms for this word, each with its own unique nuance. "Perceiving" is one alternative that emphasizes the act of becoming aware of a sensation. "Experiencing" puts the focus more on the overall feeling or sensation itself. "Sensing" is a more general term that doesn't necessarily imply a specific emotion or physical response. Other options include "feeling," "noticing," "discerning," "detecting," "experiencing a reaction," "having a perception of," and many others. These synonyms can help add variety and precision to descriptions of feelings or experiences.