nausea after working out...?

Just don't over exert yourself when working out. Do the exercises/work out real SLOW. ..

Sometimes that is due too heavy equiptments. I also go to gym evryday, and don't even take meal before working out but I didnt have nausea.

It may be due to unbalance blood flow in the body when working out cause one time, I did the sit ups, with my upper body a bit lower than my lower body, then felt nausea.

Dizziness and nausea is usually caused by a lack of blood glucose (sugar). But in this case if you had a empty stomach and swam it could be motion sickness.

Eat a banana before you workout and always warm up

Its possible you didnt get enough sleep before your workout and sometimes your body just isnt in the mood to work-out. As weird as it sounds your body is in control. It's also important to have food in your stomach both before and after your workout. Look into some pre exercise shakes/meal supplements and some post exercise shakes/meals.

Try eating a piece of fruit prior to working out and sip Gatorade or some other sports drink during your workout.

i remember my old man told me, never swim after doing some work out.... now i know what he means.....