This can be a sign of a primary headache disorder called Occipital Neuralgia. You should visit a neurologist for good diagnosis and treatment.

There is a chance that either you are suffering from tonsillitis or an infection in your throat and mouth. It is advisable to consult an ear-nose-throat specialist or a periodontist immediately to get an exact diagnosis and a correct treatment plan. 

Based on their condition, they need to see a general physician or medical physician such as a cardiologist, nephrologist, endopedist, or infectious disease specialist. The choice of treatment plan is dictated by the diagnosis and may cover medication, lifestyle adjustment, hospitalization, or surgery.

This is sometimes caused by inflammation or excess fluid retention. Altitude sickness can be brought on by some chronic diseases, such as heart, kidney, or liver diseases, or by venous insufficiency or sudden traumatic injury. 

I would suggest you seek the assistance of a gynecologist to address your period abnormalities. It is not advisable to lose weight in 15 days and it is detrimental to health. Healthy weight loss involves adopting a balanced diet and partaking in regular physical activities. 

High levels of thyroid can be due to symptoms such as gastritis, pain in the left leg, and so on. It is necessary to consult an endocrinologist whether it is for thyroid management or gastritis. The pulmonologist would be crucial in the management of the breathing problems and the primary physician would refer the patient to the relevant specialist.

The presence of nausea, headache, and dizziness as symptoms can be linked to diseases such as tumor formation. These complaints can also be indicative of other conditions than primary hypothyroidism. Seeing a neurologist is important in this regard to rule out the possible causes of the symptoms and receive the required treatment.

I recommend you visit a dietician or a nutritionist so you can have a weight gain program customized for you. Just taking weight gainers without proper advice can cause you some major health hazards. A dietician can recommend you while a nutritionist can help you with the choice of proper supplements for your body type. 

I may be a respiratory infection of the 2-year-old toddler. A quick consultation with the pediatrician is very necessary. The doctor may prescribe drugs to clear the negative effects and prevent further ailments.

The first important step she must take is to seek the advice of the doctor because she cannot stand or get out of bed. I advise that you seek a neurologist or a physical therapist to get her condition examined and given an appropriate treatment.

From the reported symptoms, your mom should avail of medical services as soon as possible. She appears to be suffering from a stroke, which if not treated instantly could lead to severe and permanent impairments. An appropriate doctor to consult would be a neurologist or stroke specialist.

Your symptoms suggest you might be having a sinus infection, according to a diagnosis. I suggest that you make an appointment with an ENT specialist or an otolaryngologist to get an exam. They can help formulate a treatment plan for you. 

It is vital to bear in mind that a swollen lymph node can be a sign of an infection or an underlying condition. I recommend you make an ENT specialist appointment that would be a necessary step for your diagnosis and treatment. 

Sometimes, a fast heart rate can be a sign of sleep apnea or other sleep problems when you are feeling sleepy. Please do go see a sleep specialist for more evaluation and else witness the management of your condition.

This may be triggered by several reasons – some of them stress, fatigue, caffeine, etc., or more serious – like hemifacial spasms. If you have any doubt, go to a neurologist to establish the cause of the problem and get proper treatment.