Can shoulder pain and weakness after kickboxing be serious?

Before medical consultation with your doctor, there are a few tests that you can get like x-ray, bone density test, blood tests, MRI or CT scan. If you visit a doctor near you they can assist you with the tests that are important for you.

When your shoulder tendons have tendinosis it means they're damaged. Doing too much with your arms or just getting older can cause it. The time it takes to get better is different for everybody. As long as you take the medicine and do the physio that should help. Pain can come and go while you're getting better, so don't worry if it starts hurting again. Feel better!

You might have muscle pain coupled with pressure on the neck and the shoulder region. Muscles are likely to be tensed or strained bringing about such signs. The issue of muscle dropping below your clavicle and squeezing your neck could result from sitting or standing with drooping shoulders. You can ease them by keeping the right body posture always, engaging in mild stretches that won’t hurt much, and using warm towels on those affected spots. 

This could indicate a serious ankle injury, possibly a fracture. It's crucial to seek immediate medical attention to determine the extent of the damage and receive proper treatment. Rest, elevate your leg, and apply ice in the meantime, but prioritize getting medical help as soon as possible for an accurate diagnosis and appropriate care.