Why is my neck in continuous pain post spinal cord operation?

The cramp or spasm can happen sue to muscle fatigue or overuse, especially if you engage in activities that strain your calf muscles, such as running or excessive exercise. 

Having a longer fe­mur is better for sprinting spee­d. The femur is your thigh bone. A longe­r femur helps power your sprints. Howe­ver, a longer tibia below your kne­e strains leg muscles. A longe­r femur gives you an advantage for sprinting spe­ed. Be sure to train safe­ly and avoid overworking muscles though.

Fractures cause pain and limit movement, while spinal degeneration also leads to discomfort. Back pain and difficulty walking are common symptoms. However, hip replacement is a more urgent concern because it significantly impacts mobility. Addressing the hip first, as recommended by the surgeon, could improve the quality of life by alleviating discomfort and mobility issues.

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!