Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
felt sick
Grammar usage guide and real-world examplesUSAGE SUMMARY
'felt sick' is correct and can be used in written English.
You can use it to express that you've been feeling ill. For example: "I felt sick so I had to stay home from work."
✓ Grammatically correct
News & Media
Formal & Business
Alternative expressions(4)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
48 human-written examples
Mark felt sick.
News & Media
But I felt sick.
News & Media
He felt sick.
News & Media
I felt sick.
News & Media
She felt sick.
News & Media
"We felt sick at heart.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
12 human-written examples
"We feel sick violated".
News & Media
Must feel sick".
News & Media
"I feel sick".
News & Media
God, I feel sick".
News & Media
I really feel sick.
News & Media
Expert writing Tips
Best practice
To be more specific about the reason for feeling sick, follow up with additional clarifying information such as "felt sick because of food poisoning", or "felt sick with worry".
Common error
While "felt sick" describes a general feeling of illness, avoid using it when referring to specific medical conditions or serious diseases. Opt for more precise terminology when the context requires it.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "felt sick" functions as a descriptive statement, indicating a subjective experience of illness. It uses the past tense of the verb 'feel' to describe a past sensation. Ludwig AI confirms its grammatical correctness and widespread usage.
Frequent in
News & Media
75%
Formal & Business
15%
Science
5%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "felt sick" is a common and grammatically correct way to express a feeling of illness or discomfort. As Ludwig AI validates, it appears frequently in various contexts, primarily in news and media sources. While suitable for general use, more specific language might be preferred in formal or scientific settings. When writing, remember to be precise about the reasons for feeling sick and differentiate between general unease and specific medical conditions.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
felt nauseous
Indicates a feeling of needing to vomit, slightly more specific than generally feeling sick.
felt unwell
A more general term for not feeling healthy, less intense than "felt sick".
felt ill
Synonymous with "felt sick", conveying a state of poor health.
felt queasy
Describes a feeling of slight nausea or unease in the stomach.
experienced nausea
A more formal way to describe feeling sick, often used in medical contexts.
felt under the weather
An idiomatic expression for feeling slightly unwell.
felt poorly
A less common but still valid way to say one felt sick.
felt discomfort
A broader term indicating physical unease, which could include feeling sick.
felt a wave of nausea
Emphasizes the sudden onset of feeling sick.
felt ailing
Suggests a more prolonged or chronic state of feeling sick.
FAQs
What does it mean to say someone "felt sick"?
Saying someone "felt sick" generally means they experienced a feeling of illness, which could include nausea, general discomfort, or a sense of being unwell.
What are some alternative ways to express that someone "felt sick"?
You can use alternatives like "felt nauseous", "felt unwell", or "felt ill", depending on the specific nuance you want to convey.
Is it grammatically correct to say "felt sick"?
Yes, it is grammatically correct. "Felt" is the past tense of the verb "feel", and "sick" is an adjective describing the state of feeling. The phrase follows standard English grammar rules.
In what contexts is it appropriate to use the phrase "felt sick"?
It's appropriate in a variety of contexts, from informal conversation to more formal writing. However, in professional or scientific contexts, it may be preferable to use more specific and descriptive language about the symptoms experienced.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested