Is it normal to feel sick in high humidity

High temperatures combined with high humidity is literally a killer. When air humidity is high, your sweat doesn't evaporate and your core body temperature can rise very quickly. Once it gets to 108° F (42° C), death occurs. Vulnerable people (children, old people and those with medical issues) can die at lower body temperatures, and organ damage can also occur then in healthy people too.

What you describe sounds like you could be at least on the edge of Heat Exhaustion, the phase before Heat Stroke. HE occurs when the body’s core temperature increases to 101-104 degrees Fahrenheit. The symptoms include headache, low-grade fever, nausea or vomiting, increased thirst, generalized weakness, and muscle ache or cramping. Feeling agitated and anxious are common and some people may even faint due to fluctuations in blood pressure. If something isn't done to reduce the core body temperature, Heat Stroke can follow, and that's a life-threatening condition requiring urgent treatment.

The symptoms of Heat Stroke are confusion due to lack of blood flow to the brain, reddened and dry skin, lack of sweat and convulsions. Unfortunately, by the time people reach this stage they're usually so out of it that they often don't understand what's going on, and they can be physically incapable of seeking the urgent medical attention they require.

Around 700 people die of heat stroke every year in the United States alone, in spite of the fact that air conditioning is very common. It's suspected that, world-wide, around 300,000 die of heat stroke every year.

The only thing I can suggest is that cool- or cold-water showers and baths could give you some relief. The inability of your sweat to evaporate doesn't matter if the heat of your body is being absorbed by water that's cooler than the temperature of your skin.

I feel like this sometimes too. I take cold showers and wear light colored clothing and as little as possible. We don’t have AC because it dries out my bronchials but I installed ceiling fans in all the rooms.

Dude, muggy weather is the worst! I live in a very hot place, sometimes it feels like lava is coming out of the pipes in the shower, but it's a dry heat. Humid heat really is the worst of the worst! :(

You sound like my wife. She cant be outside when its 85 for 5 minutes she will act like shes dying.

Please take care of yourself. Heat can be a killer.