A muscle rupture, tendon damage, nerve irritation, or shoulder/neck strain could be the cause of the abrupt hissing or popping sound that occurs during exercise and is followed by persistent discomfort that radiates from the shoulder blade to the arm and neck. It is crucial to contact an orthopaedic physician or sports injury specialist for a thorough evaluation, as the pain has persisted for 7 months and is affecting multiple areas. You may also require imaging tests like an MRI or scan. For the time being, stay away from strenuous exercise and lifting and, if recommended, attempt easy stretching, posture correction, warm compresses, and physiotherapy. If you have significant swelling, numbness, weakness, or loss of mobility, get medical attention right once.

It sounds like you may be experiencing referred pain, possibly from a dental issue like an infected tooth, an impacted wisdom tooth, or a jaw joint (TMJ) problem, especially since it worsens in the morning and when eating. For temporary relief, you can take over-the-counter pain relievers like ibuprofen or paracetamol, following the package instructions. Applying a warm or cold compress to your jaw can also ease the discomfort. However, because this pain has lasted for a week, please visit a dentist or doctor promptly to identify the root cause and receive proper treatment. Avoid hard foods in the meantime.

It is very common to experience joint pain after recovering from chikungunya; this is known as post-viral arthralgia and usually resolves over time. For mild to moderate relief, you can take over-the-counter paracetamol or generic nonsteroidal anti-inflammatory drugs (NSAIDs) like ibuprofen, provided you have no contraindications like kidney or stomach issues. Rest, staying well-hydrated, and applying warm compresses to the joints can also provide comfort. Gentle stretching or physiotherapy is highly beneficial. If the pain is severe, persistent, or accompanied by joint swelling, please consult your doctor, as prescription-strength medications or short-term corticosteroids may be required.

Pain around the right shoulder blade that spreads to the neck and shoulder may be due to muscle strain, poor posture, or nerve irritation, but since you smoke and use gutkha, it is important to rule out heart or lung-related problems as well. Try rest, gentle stretches, and avoiding heavy lifting, but see a doctor promptly to check the cause and get proper treatment. Reducing smoking and gutkha use will also help your overall health.

Since your muscle stiffness below the left rib cage has improved with physiotherapy, vitamins, and calcium, you can continue these measures. Keep doing gentle stretches, stay active, and maintain good posture. If the stiffness persists or worsens, see a doctor to rule out other causes. Regular exercise and a balanced diet will help prevent it from coming back.

Because your pain radiates to your thigh and gets worse with sitting and bending, it is likely related to nerve irritation in your lower back, such as a herniated disc or pinched nerve, rather than a muscular issue alone. Since NSAIDs and muscle relaxants haven't provided relief, the next best step is to consult your doctor for a physical examination. They will likely recommend an MRI of your lumbar spine to get a clear picture of your discs and nerves.