You need to visit a doctor if the pain is excruitiating. They'll find the cause by performing physical exminationation and provide appropriate advice or treatment. Make sure to keep a record of when the pain occurs and any accompanying symptoms.

Heart palpitations can have various causes, and a cardiologist or a primary care doctor can evaluate your symptoms and provide appropriate advice. 

Consult a primary care physician or a gastroenterologist. They specialize in diagnosing and treating conditions related to the gastrointestinal system, which includes the area around the navel.

Blood clots in urine and lower left back pain could be indicative of a urinary tract issue or kidney problem. Consult your doctor such as a urologist or a primary care doctor, who can evaluate your symptoms, conduct a physical examination, and order further tests. 
Meantime you can drink plenty of water to stay hydrated and avoid any irritating substances such as caffeine or alcohol, that could exacerbate the symptoms.

Fast heartbeats can have various causes, including hormonal changes, stress, or other conditions. Regarding your menstrual cycle and trying to conceive, it's normal for it to take some time to conceive. If your're concerned you can check with your gynec and confirm, they might as well advise you further.

I recommend you to consult a gynecologist who can evaluate your symptoms and advice you on it. Its necessary to find the cause of your pain.

Give yourself time to heal and avoid activities that worsen the pain. Over the counter pain relief like also can help but take only as if prescribed by a doctor. Apply cold compress to reduce swelling.

You need to rest and avoid excessive strain. You may take pain killers, try heat or cold therapy. Do gentle stretching exercises and maintain good posture. 

It's difficult to determine the exact cause without further info.. Stomach aches can have various causes which are unrelated factors like stress or dietary changes. If you're concerned about pregnancy then you may take a pregnancy test for confirmation.

Intermittent tricuspid regurgitation or TR) is sometimes found during prenatal screening tests like the NT scan. In many cases, it is considered a normal variant and may not pose significant health risks to the baby.

If you have concerns about pre ejaculation or your sexual health it's best to consult with a healthcare professional like urologist or your family doctor for personalized advice and guidance.

A kidney stone patient's diet plan may include the following recommendations:

1. Stay hydrated to help flush out toxins.
2. Limit sodium intake to reduce the risk of stone formation.
3. Consume moderate amounts of protein from lean sources.
4. Limit foods high in oxalate, such as spinach and chocolate.
5. Reduce intake of purine-rich foods like organ meats and shellfish.
6. Maintain a balanced diet with fruits, vegetables, whole grains, and low-fat dairy.
7. Consult a registered dietitian for personalized guidance.

Remember to consult with a doctor or dietitian for an individualized diet plan based on your specific needs.

In this case you should go for second opinion of another experienced doctor. They can evaluate your case and then you can come to a conclusion.