In a close-ended manometer, one end of the manometer is attached to the high-pressure gas, and the other has a vacuum of gas instead of being open to the air. Barometers also fill this function, but measure only atmospheric gases.
Less common HIV symptoms in women in this stage include: 1  Swollen lymph nodes. 2  Nausea. 3  Fatigue. Ulcers in the mouth.  Vaginal infections, like yeast infections and bacterial 1  vaginosis. Night sweats. 2  Vomiting. Muscle aches and joint  pain.
HIV may not cause symptoms early on. People who do have symptoms may mistake them for the flu or mono. Early symptoms of HIV are called acute retroviral syndrome. The symptoms may include: 1  Belly cramps, nausea, or vomiting. 2  Diarrhea. 3  Enlarged lymph nodes in the neck, armpits, and groin. 4  Fever. 5  Headache. 6  Muscle aches and joint pain. 7  Skin rash.