[Francine] I'm feeling earache/stomachache [Tom] I'm feeling unwell/sick. I have an earache/a stomachache. [Francine] I'm sick (could it have the same meaning as "I'm nauseous" or just to talk about diseases?)" [Tom] When describing the symptom of nausea, you say, "I'm nauseated." Saying "I'm nauseous" is a mistake that many native speakers make and it means that you're causing nausea.

You would say "I have a stomachache/headache". I've never heard anyone say "earache". I would say "My ear hurts" / "my ears hurt". You can also say "my stomach hurts." "I'm sick" can mean "I am ill" or "I am nauseous". You can also say "I am feeling sick." "I'm not feeling well" also works for all of these. - I'm feeling earache/stomachache - I'm with an earache/stomachache - I'm sick (could it have the same meaning as "I'm nauseous" or just to talk about diseases?) - I'm with a terrible headache

I have an earache/ stomachache.

I'm sick.

I have a terrible headache.

Hope this helps!

I have. Not with.

“Nauseous” usually means affected with nausea. “I feel nauseous and am going to have to throw up” It can also mean causing nausea, such as an odor. “Nauseating” could also be used for this but can be used more generally.