If shortness of breath comes in while walking on, it means the respiratory condition. It is advised to consult a pulmonologist for further assessment and diagnosis. A pulmonologist is a specialist who can help in diagnosing and treating lung and respiratory conditions.
 

While both cobalt chrome and ceramic are used for TKR knee replacement, the choice of material will depend on patient-specific factors. A reputable orthopedic surgeon can advise on the most suitable material for your situation.

The swollen eyes are the symptoms of the eye infection like conjunctivitis that also called "eye flu". It is advised that one should visit an ophthalmologist for a right diagnosis and treatment.
 

The normal cycle sometimes is longer or shorter than usual. But if your cycle goes on longer than 10 days or if you have severe bleeding, you should see a doctor. You should see your gynecologist for a proper diagnosis and treatment of your condition.
 

From the information given, it is highly unlikely you are pregnant. Though, it is better to see the gynecologist for more in-depth evaluation and advise

Acne scars and pigmentation can be treated with topical creams, chemical peels, and laser therapy, depending on the severity of the condition. You must consult a dermatologist for correct diagnosis and treatment plan.

You should remember that paying a visit to an I-pill clinic disturbs the regularity of menstrual cycles. I urge you to visit a gynecologist who can help you decide on the correct expected menstrual date and also recommend the appropriate contraception methods.

You have to stop using the vape immediately. Nicotine could prevent the production of milk and cause harm to your baby`s health. Consult with a specialist in lactation or gynecologist to help to enhance your milk production and the well-being of both you and your baby.

These may be symptoms of hives, insect bites, or allergic reactions. It is imperative to consult a dermatologist to get an accurate diagnosis and treatment. They can determine skin problems and subsequently, provide treatment options.

This is often due to either a throat or ear infection/inflammation. Please schedule an appointment with an ENT specialist to determine the best options for your condition.

These might be caused by something deep under the sadness or anxiety. I suggest that you see a medical doctor or a licensed counselor who can help you in this way.

Nausea during a period usually is one of the most common symptoms, but if it goes beyond and is accompanied by other symptoms like vomiting, fever, or redness, it might be a cause for concern. I recommend you to look for a gynecologist or a general practitioner.

If you get menstruation for more than 8 days quite frequently, you've better consult a gynaecologist. Prolonged menstruation lasting for a couple of days may be a sign of some serious underlying disease just like uterine fibroids or endometriosis.

By looking at your symptoms one can say that the tentative diagnosis is a common cold or flu that you possibly got from the stepson. Therefore, you should see a general practitioner to make the correct diagnosis and treatment. 

Chemo can be used as a therapy if in case you have cancerous tumors such as in the lungs and kidneys. The choice is whether to try the chemo or not, which is to be done by a professional who is familiar with the individual condition of the patient and who can look at their medical history. It is highly advisable to seek the opinion of an oncologist for a thorough evaluation and care of the cancer.