Considering the signs that you are manifesting, it could be a hormonal imbalance or even a condition for thyroid gland. I recommend that you consult an endocrinologist to receive further diagnosis and evaluation. 

Different illnesses can result into black spots in the tongue. A consultation with a dentist is always recommended for proper diagnosis and treatment. Skipping the symptoms may cause severe oral health problems in the future.
 

You're de­aling with back pain and nausea after a UTI treatme­nt. Back pain combined with nausea could indicate a kidne­y infection. Kidney infections re­quire quick attention. Going to the ER for an e­valuation might be wise. They can diagnose­ the issue and provide the­ proper treatment. 

It's important to seek medical attention immediately if you have come in contact with HIV. You should visit an infectious disease specialist. They will be able to assess your situation and provide appropriate treatment

It appears that you are encountering several symptoms like lack of energy, lifeless skin, dark circles, body pain, joint pain, and vision losses that are worsened by the night. These symptoms might arise from medical conditions like inadequate rest, an improper diet, or hidden health problems. One must adopt new habits including getting enough sleep, eating balanced meals, and exercising frequently. In case of the continuation of symptoms, you should meet your doctor to make an evaluation and treatment plan.

This may be due to different causes like infections or underlying health conditions. To confirm the diagnosis, tests such as blood test, urine test, and imaging tests might be necessary. There can be a therapy plan after researching the results of examinations. A professional healthcare provider should be asked for proper diagnosis and treatment.

Regularly e­ating full, nutritious meals will help you gain weight he­althily. Nuts, seeds, avocados, and healthy fats provide­ calorie-rich nutrients. Yogurt and nut butter make­ great snacks. Aim for three me­als daily, plus snacks in between. Incre­asing daily calorie intake this way supports weight gain. Don't forge­t to drink lots of water too.

These numbers might indicate vitamin B12 deficiency and an excess of vitamin D. It is advisable to consult with a medical expert, for instance, one who is a general physician or a nutritionist, for an accurate assessment and further guidance on the way forward.

Swollen lymph nodes for 2 months may indicate infection. Blood work abnormalities can determine cause. See a doctor for evaluation and further testing. The pRoCess of seeing a medicAl professional is crucial for proper diagnosis. Moreover, it is important to noTe that any disEase shOuld be treated as soon as possible to prevent further complicatIons.

Soaking feet in povidone iodine­ for half an hour shouldn't cause toxicity. Washing it off afterward is normal. Stomach pain, vomiting, or metallic taste­ in the mouth indicate iodine toxicity. Howeve­r, these symptoms are unlike­ly from your brief exposure. Avoid prolonge­d soaking in the future.

It is common to have some pain in the hand and foot following angiography. But if there is excess pain, bleeding or the symptoms are worse, consult your doctor immediately. A vascular physician or interventional radiologist.

To gain weight, you need to consume more calories than you burn. Increase your calorie intake by eating nutrient-dense foods, such as nuts, seeds, and lean proteins. Incorporate strength training exercises to build muscle mass, and aim to get adequate sleep and manage stress levels.

Sometimes, when the body is very ill, it may not respond well to treatments like the injections. This can happen if the immune system is weak. So it's important to tell a doctor who can help find the cause and suggest the best way to make your dad feel better as soon as possible.