Overuse injuries are often misinterpreted as being due only to doing too much of a particular activity.
They often settle with a period of rest then return, not initially , but after a period of returning to the activity.
They result from cumulative overload of tissue structures, such as your lateral epicondyle in the case of “tennis elbow”, due to poor biomechanics or tissue restriction often elsewhere in the body.
The tissue that develops the pathology is often the circuit breaker only. To address the problem correctly the entire circuit needs to be considered which may involve treating some areas that are not painful and which may be some way from the painful tissue.